For the last two weeks, I have been having trouble playing any kind of game on my PC. Shortly after I start playing a game, my computer will revert back to the desktop display and minimize my game to an icon at the bottom of the desktop. I can click on the icon to resume the game but it does this every 60-90 seconds. Does anyone have any ideas? This is driving my crazy...

I find if an older game or program cannot be installed by
way of the CD then use "Program Compatibility Wizard" to install it.

If a game is installed by doing the above, but will not start by way of
the CD, then when inserting the CD hold down the left
Shift key for approx. 15 sec. to keep AutoRun from taking over.
Now click the game in the "All Programs" list. Should start now.
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From a Microsoft web page:

If an older application gives you trouble when running
Windows XP, you can set the compatibility properties
manually so that the program runs in a different mode,
such as Windows 95, or in a different display or resolution
setting. To set the compatibility properties for a program:
1. Right-click the executable or the program shortcut to the
executable, and then click Properties.
2. Select the Run this program in compatibility mode check box.
3. From the list, select an operating system that the program
runs in comfortably.
4. If necessary, also change the display settings and/or
resolution, or disable the Windows XP visual themes.
Run the program again when you?re finished changing the
settings. Adjust the compatibility settings again if the
program is still not running smoothly: a program that's
unhappy on Windows 2000 may flourish on Windows 98.

This is indeed a problem, and seems to be software/conflict related. I too have this problem. Last time, I did a clean xp install (again) and it was fine for about six months, and now is doing this again. It has nothing to do wiht graphics cards or drivers. I am guseeing it is as a result of the numerous installs and removals of 'free' game demos etc the kids get from 'magazine cd's'upsetting someting in windows sooner or later. What? I don't know, but I have two pc's, and both with xp, one is fine, the other is doing this. I will do some research now I have found via the internet HEAPS of people seem to experience this problem. Changing the compatibility as often suggested is also irrelevant.