perhaps you could provide more information?
for example:
what version of 7 (home,pro, busines ??)
how was it installed ? upgrade from prior os or clean install?
if upgrade was vs 2008 already on the system?
what version of vs 2008 (std,pro, team ???)
is the OS x86 or x64 ?
any other problems with other apps?
and is the win7 from MSDN or a MSFT contact or???
if you have MSDN then you should have 4 support calls to use, if they find it was a win7 issue or bug in vs you will not use one of the msdn support calls i belive.
oh and i have vs 2008 pro on the 7 rc w/o any issues so far.
but i know that from having ran many different beta / ctp / rc versions of windows and vs and .net over the yeears there are sometimes issues that if we do not report them then msft can't find the fix for them. it's impossible for them to find *every* possible problem given how many ways we can re-install different things on each pc.