Let me know what you use and if you like it... windows 2000 pro or windows xp pro. I am using xp and my system seems unstable. I just did a clean install and format of the drive. The only thing I really wonder is...Is it the OS or the video card. I am using a geforce fx 5700le. I know its not qualified hardware but i can't afford a new card right now. So what do you all think about your operating system? I was thinking about installing 2000 and giving it a try. thanks for any wisdom you can provide. 