New mouse?
The screen saver does not work when you use a Wireless Optical Desktop mouse
on a Windows XP SP2-based computer
http://support.microsoft.com/kb/911895
To set or change a screen saver
1. Open Display in Control Panel. Or right click the Desktop, select
Properties and click the Screen Saver tab.
2. On the Screen Saver tab, under Screen saver, click a screen saver in the
list.
Notes
* To open Display, click Start, point to Settings, click Control Panel, and
then double-click Display.
* After you select a screen saver, it will automatically start when your
computer is idle for the number of minutes specified in Wait.
* To clear the screen saver after it has started, move your mouse or press
any key.
* To view possible setting options for a particular screen saver, click
Settings on the Screen Saver tab.
* Click Preview to see how the selected screen saver will appear on your
monitor. Move your mouse or press any key to end the preview.
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Hope this helps. Let us know.
Wes
MS-MVP Windows Shell/User
In