Originally Posted by lonz358
no you shouldn't have to reinstall vista because it's on the hard drive already
That's incorrect. Upon changing the motherboard, it's most likely you'll need to reinstall Vista, because the bios settings will be different, as well as drivers and things. A repair install might
work, but highly unlikely. Good choice of parts though.
You don't have to buy a new Vista, you can just maybe borrow a disc from someone and reuse your serial key, or torrent a legal, uncracked version.