My "Wolfenstein" copy had the same problem
so...
However, the difference from Xp don't worth the upgrade, plus it has some more security characteristic resulting only in annoying and boring continue requests to the users, like 2 popups windows when you have to delete a file
... You can even turn off that thing but the system wants it on and continue to ask you to turn it on... I have a wireless connection to the router here but with Vista it doesn't work fine, for example with online games (a lot of "disconnected" pop ups). I resolved this thing in XP using the driver of the company that made the wireless card, but it is impossible in Vista and it's nearly impossible to change the parameters too.
Poser freezed because of (I think) the vdeo card driver that can't be tuned in Vista (no modified drivers have been yet released). I turned back to XP, just reinstalled a lot of things (It took very very long...) and I think I'll wait for the next O.S.