I'm a Linux person, so when I bought this computer I formatted it immediately into separate partitions so I could use Windows Vista/7 for games.
I finally got around to installing Vista (my Win7 upgrade disk came in the mail), and I go to activate my key for Vista and it keeps saying "Key is in use".
Is it possible that by formatting the whole drive immediately I caused an issue with the licensing? Who would I contact for this sort of thing anyway (obviously Microsoft, but their site is confusing to me).