I've just setup a new Sandy Bridge rig and I've already had 2 BSOD screens in the last 24 hours (not too frequent but enough to be a little concerned).
I checked the event viewer logs in Windows 7 and noticed there are several errors (about 131 in the last 24 hours) and several warnings like as follows:
A corrected hardware error has occurred.
Here's what I've got:
EVGA GeForce 460 SE
Crucial 128 GB SSD
Western Digital 500 GB Caviar Blue
Corsair 8GB DDR3 1300 MHZ
This may be just coincidental (probably is) but the BSODS began after I edited the registry so that my program files directory was on my 500GB harddrive and not on my SSD...it seems to run fine since that change, and it was a while afterwards that it BSOD'd.