Wow! It's not the oddest thing I've seen cause a bsod but it does rank up there. In fact this is a perfect example of why you simply have to try everything and check everything as it might be something as simple as incorrect keyboard settings. I once had a case where a browser was causing a bugcheck 124 (over heating issues usually related to overclocking) so it can certainly be a frustrating search. It's great to hear that at last there might be a solution and great job in spotting it. If any issues should reoccur Bawb then please post back. Best of luck!