You need to update your ATI openGL support...
It happens a lot with ATI graphic cards.
Go in here:
http://www.ati.com/support/driver.html
Put your OS and your graphic card model , click "Go" then download and install the latest ATI driver for your card, it should fix your problem... [img]images/smiles/icon_smile.gif[/img]
OTOH, its NOT a good idea to install WinXP over an existing OS (WinMe in your case...)
I solved all my XP problems only by making a clean install of the OS...
Be careful with that, it can give a lot of problems...