How Do I Unregister My Mac?

Click the 'Apple' icon in the upper-left corner of the desktop and click 'System Preferences.'
Click 'MobileMe' in the Internet & Wireless section and click the Sync tab. Click 'Advanced' in the bottom-right corner of the MobileMe window.
Click the name of your computer in the account synchronization window and click 'Unregister' to remove the computer from MobileMe's registration.
Click 'Done' and close the MobileMe window to apply and save the new settings.
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How to Turn Off the iSight Light on an iMac

Close the iChat, iMovie and Photo Booth applications. If you don't see them open, search for them by typing in 'Photo Booth' (or the other applications) in the Finder at the top right of your screen, then opening the application.
Select 'Photo Booth' (or the other application names) from the menu that appears in the top left of your screen, then click 'Quit Photo Booth.' If you do this for all three applications, you should be able to turn off the iSight light.
Open your System Preferences folder by typing 'System Preferences' in the Finder menu. Select 'System Preferences' from the list of options that appear, then select 'Accounts' and 'Login Items.' View the list of items that are set to open upon Login. If Photo Booth, iMovie or iChat are on the list, deselect them by clicking the arrow next to the item. That may have been causing your iSight light to be on all the time.
Click the 'lock' item in the bottom left of the Accounts pane to save your changes, enter in your Mac username and password to confirm the changes, and click 'OK.' Your camera light should not turn on and be left on now, unless you open Photo Booth, iMovie or iChat.
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How to Set a Password on a MacBook (6 Steps)

Click the 'Apple' logo in the upper-left corner of the screen.
Click 'System Preferences.'
Click 'Accounts.'
Click 'Change password.'
Enter the old password, if any, and enter the new password into both the 'New password' and 'Verify' boxes.
Enter a password hint, if desired, and click the 'Change Password' button. The changes take effect immediately.
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How to Invert Color on a MacBook Pro Monitor (7 Steps)

Click the 'Apple' menu at the top of the screen and then click 'System Preferences.'
Click 'Universal Access' in the 'System Preferences' window.
Click 'Seeing' in the 'Universal Access' window to view a list of visual options.
Click 'White On Black' in the 'Display' section of the window to invert the color of the display.
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How to Change the Administrator Name on a Mac

Login to your Mac using the administrator account. To do this, select the administrator account from the login screen. Depending on your settings, you may need to enter the administrator password. If you are already logged in with another account, then first select 'Log Out [Account name]...' from under the Apple Menu at the far left of the top menu bar.
Open the System Preferences application. This program is located by default in your Applications folder, but you may have moved it somewhere else. The appearence of the icon varies depending on what version of Mac OS you are using. In Mac OS 10.5, its icon looks like three gears in a silver-colored box, but in earlier versions of Mac OS X it may look like a light switch.
Select 'Accounts' in the System section. The Accounts icon looks like the silhouettes of two people, and is usually at the beginning of the fourth row of icons, under the 'System' header. Click on the icon.
Select the administrator account from the list on the left of the Accounts window. Administrator accounts say 'Admin' under the account name. Change the administrator status of an account by checking or unchecking the 'Allow user to administer this computer' box. If there is only one account, it will have administrator privileges by default.
Change the text in the 'Name' field to the new administrator name. Enter the administrator password to confirm the change.
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How to Enable Right Click on an Apple Mouse

Make sure your wired Apple mouse is plugged into a USB port on your computer or your wireless mouse is connected via Bluetooth.
Click on the 'System Preferences' icon in the Dock.
Go to the 'Mouse' control panel in the Hardware section.
Open the drop-down menu on the right side of the window. The menu will be set to 'Primary Button' by default.
Change the drop-down menu setting to the 'Secondary Button' option. This will instruct the system to recognize right-clicks.
Close the System Preferences window to save the settings. Now when you press on the right side of your mouse's surface, the computer will treat it like a right-click.
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How to Disable Verbose Mode Startup on a Mac Mini

Open 'Applications > Utilities > Terminal.' The Terminal application allows the user to give text-based commands directly to the operating system.
Type the command “sudo nvram boot-args=” into the Terminal window and press enter. The command must be exactly as written and should not include the quotation marks.
Quit Terminal and restart the computer to verify that verbose mode startup has been disabled on your Mac Mini.
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How to Reset an AirPort Card (4 Steps)

Click the 'System Preferences' tab in the lower left corner of the dock.
Select 'View,' then click 'Network.' Once the new selections appear, click 'Show,' then 'Network Port Configurations.'
Deselect the 'AirPort' option, then choose 'Apply Now.'
Select the 'AirPort' option and click 'Apply Now,' then exit out of 'System Preferences' to complete the reset.
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How to Find a Macbook's Manufacture Date (4 Steps)

Click on the 'Apple' icon located on the desktop, in the upper left hand corner of your MacBook's Finder window.
Scroll down to 'About This Mac,' then click on the 'More Info' button at the bottom of the window.
Note the 'Hardware Overview' pane on the right side of the window. Locate the 'Serial Number (system):' toward the bottom of the list. Locate the serial number for your Macbook in the 'Hardware Overview' window that opens. The serial number is composed of characters and letters, and contains the manufacture date.
Note that the first two characters in the serial number signify the location where your computer was manufactured. Examine the third character in the string, which is a single digit. This is the year your MacBook was manufactured. For instance, if the numeral is '8,' your computer was made in 2008; the numeral '0' would signify that the manufacture date is 2010, since the MacBook was not released in the year 2000. Now look at the fourth and fifth characters which signify the week that the MacBook was manufactured. The digits '12' for instance, would mean that the notebook was made in the 12th week of the year, which is the third week in March.
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How to Set Up a Server for a Mac

Install the hard drives in the server Mac. Mac Pros have four hard drive bays, so you can set up a variety of combinations. To use it as both a data server and a backup server, install two independent hard drives and two RAID (Redundant Array of Independent Disks) hard drives. The separate hard drives will be used for central data storage--things like photo collections--while the RAID drives will back up the system.
Install the RAID card into the Mac Pro. This will allow two of the hard drives to mirror each other, thus creating redundancy in data backup. Everything stored on one of the hard drives also will be stored on the other, so if one fails or develops a fault, the other will keep your data safe.
Set up the network. Macs usually have Airport Extreme (just Airport on older Macs) cards in them already. Mac Pros offer it as an option during purchase, but you can add one later, too. You will need a wireless router. Apple's Airport works best, but you can use less expensive models, such as those made by Belkin. Some routers don't work as well with Macs, such as Linksys and Netgear. If you have one of these already, try it, but if you don't, go with an Airport or Belkin.
Install Mac OS X Server software on the Mac Pro. Once installed, you can set up user groups, determine access and create the server itself using the two independent hard drives. You can add new Macs as you acquire them and give them access to the central data in the server.
Use Time Machine as your backup software for the server. Time Machine started shipping with Mac OS X 10.5, Leopard, and continues to ship with Mac OS X 10.6, Snow Leopard. It's a very basic backup program that will activate when you tell it to and only back up what's new on the system. You can set it up for different times on each Mac, so they don't conflict.
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How to Enable Quartz Extreme on a MacBook Pro

Open Finder on your Dock, then click 'Applications.' Select 'Utilities,' then 'System Profiler.'
Click 'Graphics/Displays.'
Double-click 'Quartz Extreme.'
Click 'Enabled,' then close the window.
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How Do I Turn on Infrared on My Laptop?

Turn on your laptop, if it is off.
Click 'Start,' 'Control Panel.'
Double click on the 'System' icon. The System Properties dialog box will open.
Click on the 'Hardware' tab. Click on the 'Device Manager' button.
Double-click on the 'Infrared Devices' entry. The Infrared Devices Properties dialog box will open. The 'General' tab will be showing.
Click on the down arrow under the heading 'Device usage:' and select 'Use this device (enable).'
Click 'OK.' The infrared port on your laptop is now enabled and active.
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How to Turn Off Sticky Keys on a Mac (6 Steps)

Click the Apple logo on the menu at the top of the screen.
Click 'System Preferences.' The System Preferences window will open.
Click 'Universal Access.'
Click the 'Keyboard' tab.
Click the 'Off' option next to 'Sticky Keys.'
Click the red circle at the upper left of the window to close it.
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How to Use the Calendar on an iPod

Connect the iPod to the desktop computer using the USB sync cables. Open iTunes and start the synchronization process.
Sync your iPod up to your desktop computer. Depending on your operating system or individual settings, you may need to manually open up the programs that have calendars which you wish to sync up to the iPod.
Allow the syncing process to finish. Now, pull up the main menu on the iPod. You can do this by turning the iPod on or by clicking the center button twice. This will open the main menu, no matter where you were on the iPod.
Choose the 'Extras' option from the menu. Now, select 'Calendar' to view dates and calendars.
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How to Change an Apple Computer's Background to Black and White

Find the 'Apple Menu' icon. This is located at the top left corner of your screen.
Select the 'System Preferences' menu.
Click on the 'Universal Access' icon. It's on the last row to the far right.
Choose the 'Keyboard Shortcuts' menu.
Press the 'Switch to White on Black' push button.
Push the button again to return screen to black on white.
Adjust the contrast by moving the 'Enhance Contrast' button between 'Normal' and 'Maximum.'
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How to Change Your Mac OS X System Information in the Terminal

Click the 'Finder' icon on the Dock, then click 'Applications' in the window that appears. Click 'Utilities,' then click 'Terminal.'
Type 'uname --v' in the command line window that appears and press the 'Enter' key. Note the system information that appears in the command line output.
Enter 'hostname' at the command prompt and tap the 'Enter' key. Note the hostname assigned to the computer that is displayed in the command line output.
Type 'sudo scutil --set Hostname new_hostname' on the command line, except replace 'new_hostname' with the new hostname you wish to assign to the computer. Press the 'Enter' key.
Enter 'sudo date 1230' at the command prompt, except replace '12' with the current 24-hour clock hour and replace '30' with the current 24-hour clock minutes. Press the 'Enter' key.
Type 'sudo date 1108101230' on the command line, except replace the '11' with the current year, the '08' with the current numeric month, the '10' with the current day of the month, and the '1230' with the current hour and minutes according to the 24-hour clock. Tap the 'Enter' key.
Enter 'sudo /usr/sbin/systemsetup --listtimezones' at the command prompt and tap the 'Enter' key. Find your current time zone listed in the command line output. Type 'sudo /usr/sbin/systemsetup --settimezone US/Eastern,' except replace 'US/Eastern' with your current time zone as listed earlier in the command line output. Press the 'Enter' key.
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How to Download Games to MacBook Computers (7 Steps)

Open your Web browser on your MacBook.
Find a website that has games for Mac computers. Apple’s website has many games that are for Mac computers (see resources).
Find a game you would like to download.
Check the game's system requirements and compare them to your MacBook. You can check your MacBook’s status by selecting ‘About this Mac’ from the Apple menu. If you do not meet the requirements for a game, it will not work on your MacBook.
Click the ‘Download’ button to download the game onto your MacBook. The game’s DMG file will mount on your desktop.
Open the DMG file and follow the installation instructions.
Play the game on your MacBook.
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How to Open a Port on a MacBook

Click 'System Preferences' from the Dock and select the 'Sharing' icon.
Check each box to enable sharing for the type of content you want to share. For example, check the 'File Sharing' box to enable File Sharing.
Select the 'All Users' radio button to allow access to anybody. Select 'Only These Users' to allow access to only the listed users. If you want to add users, click the '+' button, select a user or group from the Users & Groups list and click 'Select.'
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How to Make a MacBook Pro Output in Mono

Click on the 'Apple' icon located on the left side of your menu bar.
Select 'System Preferences' and choose 'Accessibility.'
Click the 'Audio' tab under the Hearing category.
Check the box that reads, 'Play stereo audio as mono.' This sends mono audio to both the left and right sides of your speakers and headphones.
Close the Accessibility window and your settings will be automatically saved.
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How to Set Up a Wireless Printer on a Mac (9 Steps)

Select your Wi-Fi network using the printer's built-in controls. You may be prompted to enter your network username and password if it is a secured network.
Install on your Mac the necessary printer driver from the CD that came with your printer. If no CD came with your printer, go to the manufacturer's website and download the software for your printer model.
Select 'System Preferences' from the Dock.
Select the 'Print & Fax' control panel in the Hardware section.
Click the '+' icon on the left side of the control panel.
Select the 'IP' tab at the top of the pop-up window and choose 'Internet Protocol IPP' from the list of available protocols.
Type in your wireless printer's IP address and queue name.
Select the correct printer driver from the 'Print Using' drop-down menu.
Click the 'Add' button to finish setting up the wireless printer. The printer will now show up as an available device the next time you print a document.
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