I use XP Home on the main desktop and notobook, 98 on the office computer, had the most problems on the office computer (all 3 have GEforce2 based chipsets) I have never used ME so I don't know if reinstalling the OS would help or not. I know on XP it is rare to have to do that (and 98 a monthly thing it seems!) Check on the Vid drivers, and the defrag first, the easiest 2 things to do. Sorry for your problems, I hate when I have problems like that because I waste so much time trying to find them.