text: windows vista and xp? i have a compaq presario v4000t notebook with- 2.0ghz intel pm 1gb ram ati mobility radeon x700  if i upgrade when vista comes out, will i be able to play my old xp games, or do i need to buy virtual pc? i dont believe microsoft is changing its windows system as the way ur thinking. be sure that ur games will work fine on windows vista, remember that every new version of windows was always able to upgrade ur old, sou every file and probram u have will be in the same place with the same proprieties.