Maybe its just me... but I had BSOD's in win 7 after installing 4.1. Could be a co-incidence or there could be a link. But reinstalling Windows and all apps was no fun at all... took a week.
You're scaring me!! I haven't had a single BSOD on my Win 7 Pro but it could also be due to computer power etc. I remember when I blew through them at times from running too many powerful programs and stuff on my old computer before I built this behemoth. I've only run it once on here, but will be more weary as I um, can't afford to have to completely reinstall everything and lose all my info- in fact, I think I might be off to Fry's today for some backup hard drives >< Haha.
Not sure if it will help you- but I built this comp almost 2 years ago, not a hitch (knock on wood) since then, and it's running Win 7 Pro 64 bit, Quad Core AMD Phenom II 965 Processor at 3.41 GHz with 8gb of RAM and like, 3 640gig hds or something. Although if anything, I think the RAM might be the thing to BSOD you. (Could be something else, I'm not really a comp science major, I'm an Architecture major so I know how to build and put things together, just not the technical science behind it