How to Test an Airport Card (4 Steps)

Close all your open programs. Go to the Apple menu and select the apple in the upper left-hand corner. Click on 'About This Mac,' which is the first link in the drop-down menu.
Wait for the dialog box to open. Select 'More Info.' This takes you to your System Profiler.
Scan the left-hand side of the System Profile menu for the 'Hardware' button, then click it. Select 'Airport Card' under 'Hardware.' If information about the card shows up in the right side of the System Profile menu, your computer recognizes the card.
Take the laptop to a place with free wireless Internet service that does not require a password, such as a hotel lobby or coffee shop. Open your web browser. Since the network requires no password, the airport card should immediately open your web page with no issues. If you get an error screen, the airport card isn't working.
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How to Troubleshoot a SuperDrive Optical Drive

Insert the disc nearly all the way into the SuperDrive slot to see if the mechanism that pulls the disc engages. The disc has to be at least 3/4 of the way into the drive before the drive pulls it in, and if it isn’t far enough into the drive, the mechanism doesn’t recognize it.
Try the disc several times in a row if the drive ejects the disc after a couple of seconds. Especially when a SuperDrive is new, it can be stiff and have difficulty in pulling in discs. Re-inserting the disc helps loosen the drive and engage the mechanism that pulls the discs in.
Make sure the disc doesn’t have any dirt or major scratching on the surface if the drive accepts the disc initially, but then ejects without initializing it for the system. If the disc doesn’t appear to be dirty or scratched, try a different disc in the SuperDrive, just to be sure that the disc isn’t the issue.
Place a disc in the drive and eject it multiple times in a row if the drive is having ejection issues. A new, stiff drive can experience issues with sluggish ejection. Inserting and ejecting a disc into the drive multiple times in a row should loosen the slot.
Drag the disc icon on the desktop to the trash if pressing the eject button or the “F12” key on the keyboard does not eject the disc. If the disc still does not eject, restart the computer and hold down trackpad or the mouse button while the computer is loading. The disc should eject.
Update the firmware for your MacBook Pro if the SuperDrive makes a lot of noise upon system startup and when waking from sleep mode. MacBook Pro’s EFI 1.8 and SuperDrive Firmware 3.0 updates were designed to this noise. Both can be downloaded free at the Apple website (See Resources).
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How to Upgrade the Memory in a MacBook Pro

Use your MacBook Pro User Guide to determine the type of memory module you need and the amount of memory your system can handle. If you don't have a hard copy of your User Guide, you can download one from the Apple website (the link is available in the resources section).
Power down the MacBook Pro to a point where the computer is completely off.
Turn the computer over so that the bottom is facing upward.
Touch a non-painted metal object to remove the static off your body. Working on a computer's internal components with static on your body could damage the hardware. Also, refrain from walking around until you have finished upgrading the memory because moving around can generate more static.
Remove the battery from the MacBook Pro.
Use the Phillips-head screwdriver to remove the three screws from the memory module cover. Put the screws in a place where they won't be lost.
Slide off the memory module cover and put it where you put the screws. Now you should be able to see the memory module(s).
Push out the tabs on the empty memory module port to prepare for inserting the new memory module.
Hold the memory module by the edge of the part (so you don't damage the module) and insert the memory module into the empty port. Fold the part down into the memory module compartment.
Replace the memory module cover and the battery and start up your MacBook Pro. The memory will automatically be discovered by the system once you've started up your system.
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How to Get to the BIOS in Mac OS X (6 Steps)

Press the power button on your Mac system.
Pres and hold CMD, OPT and 'F' with your left hand. The CMD key has an apple on it and the OPT key is in the same position as the ALT key on a PC keyboard.
Press 'O' with your right hand.
Enter commands when the prompt '0 >' loads on the screen.
Type 'Mac-boot' and press 'Enter' to exit the firmware and continue booting the operating system.
Type 'Shut-down' and press 'Enter' to exit the firmware and shut down the computer.
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How to Free Up Virtual Memory on a Mac (3 Steps)

Hold down the Command button and hit the Tab key. All currently open applications will appear in a stripe of icons across the center of your screen. Continue to hold the Command button, and tab to each application you are not using, then hit the “Q” key to quit it. The application tab bar will remain on the screen until you release the Command key. (This can also be done from the Dock, but the Command-Tab method is much faster.)
Select “Log Out” from the Apple menu to return to the log-in screen of your Macintosh. All currently running user applications will quit, but background processes on your Macintosh will continue. This will free up more memory than the individual application method in Step 1.
Restart your Macintosh from the Apple menu, or by pressing the Power button and clicking the Restart button. This will clear out all of your virtual memory and start your memory over from scratch when your Macintosh finishes restarting.
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How to Install a Wireless Mouse for Use With Your Mac Laptop

Install two AA batteries in your wireless mouse.
Turn your mouse over, then slide the power switch over to cover the light.
Open your utilities folder to locate the 'Bluetooth Setup Assistant.'
Open the Setup Assistant then click 'Continue.'
Choose the 'Mouse' option on the 'Select Device Type' panel.
Turn on your mouse by sliding the power switch so the light is not covered.
Click 'Continue' on your computer when the light on the mouse starts to flash.
Choose the mouse from the 'Setup Assistant' listing then click 'Continue.'
Click 'Continue' again when the Assistant window says that the installation was successful.
Click 'Quit' to exit setup.
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How to Bookmark Audio Books in iTunes (3 Steps)

Launch iTunes. Double-click the icon on your desktop or access iTunes from the Windows programs menu.
Select your audiobook file. Click 'books' in the sidebar of iTunes. Your audiobooks will appear in the main window. Select a file with your mouse.
Change the settings. With the file still selected, go to the File menu (or right-click your mouse) and choose 'Get Info.' Click 'Options.' Tick the 'Remember playback position' checkbox and click 'OK' to apply your changes. Now iTunes will automatically bookmark your last position whenever you listen to this file.
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