When should I rebuild my desktop?
	You should rebuild your desktop whenever any peculiar behavior occurs with your computer, for example: freezing when you try to open or save a file, disappearing icons, software corruption, etc... Rebuilding your destop is comparable to a tune up for your car. It should be done every now and then, and can prevent and help cure many problems.
	How do I rebuild my desktop?
	1. Restart your computer. While it is re-starting, hold down the Option and Apple keys They are the two keys directly to left of the space bar. 2. Hold down the Option and Apple keys the entire time that the computer is re-starting. When it is almost finished with the start-up process, a window will appear on the screen that says "Are you sure you want to rebuild the desktop?" 3. When that window appears, you can let go of the Option & Apple keys. Hit the Return key or click OK. 4. A progress bar will appear. This should take from 30 seconds to a couple of minutes depending on the speed of your computer, how many files you have and how long it has been since you last rebuilt the desktop.