Hello Gentlemen! Win7 64bit - all software updates applied Gigabyte P55 UD3L rev 1 - f5 bios applied 2x crucial PC1066 RAM 2GB DDR3 Sapphire Radeon 5770 - 10.2 catalyst drivers applied I had actually tried to post this entire message on my machine itself and then it ironically BSOD'd as I clicked create thread. Fffff.... Anyway, so my PC seems to BSOD at present. Can be either idle or while playing tf2 or surfing. Oddly enough I have just started to fault find and have removed the ethernet cable, as at present I am still waiting for my wireless dongle to arrive, and guess what - no BSODs. Hmm!!! Any ideas where to go next? Perfect without the cable but would like to play online would be interested to hear if anyone has had similar trouble.