Suffering from the dreaded BSOD quite frequently at the moment. It was only occasional before yesterday, but now it has become endemic. The primary trigger for the repeatable BSODs is Skyrim, except only from yesterday (installed since 25th December 2012, played it for 128 hours plus without any BSOD). Played for 30-40 minutes in the afternoon after installing Dawnguard, no issue - but now somewhere between 5-10 minutes (maybe a little less), there is a guaranteed BSOD, which started late last night. At least twice now a BSOD has occured *without* being in the game. Any BSOD has only occured before when no one has been using the computer at the time - but now once last night, shortly after a BSOD in Skyrim (computer was back in Windows after successfully logging in), and once today while the computer was recovering (it got to the login screen, I typed password in, and bam!). It's extremely frustrating. Before it was just odd, happening now and then, and never in any game. Now it's gone psychotic... If I recall, at least one BSOD yesterday was a Bad Pool Header, and the two today have been PFN List Corrupt errors. Below is the system information. I will note that Event Viewer refers to a harddrive\dr0 having a bad block, but chkdsk /r hasn't found anything wrong with any drives. Tomorrow I hope to try out Seatools for Windows to scan the hard drives. It's certainly memory intensive processes that are causing trouble, although that doesn't quite explain the BSODs that struck when no one was even using the computer. One morning I'd turned it on, logged in, checked my email (I think, or just logged in), went to have my wash - came back and it was mysteriously at the login screen (I can confirm from the Event Viewer that the bad block error happened). Windows 7 64-bit AMD Athlon II X4 Processor (4 CPUs), ~3.0GHz 4096MB RAM DirectX 11 NVIDIA GeForce GT 240 Driver version: 18.104.22.16861 I'd attach the .dmp files, but it seems Windows keeps refusing permission DESPITE all users having access. For crying out loud...!