My BSOD happens when the computer is idle. It displays "ntsf.sys, 0x00000050 PAGE_FAULT_IN_NONPAGED_AREA". I tried re-installing windows, replacing RAM and it still happens. The computer works fine in Safe Mode so I suspect it might be a software/driver issue.. -Memtest results were good -chkdsk results were fine -Updated to latest BIOS version -re-installed fresh Vista ultimate - no luck -switched RAM around (still no luck) -I have a clean, brand new Core i7 system/Asus P6T Deluxe mobo/Raptor hdd/ATI 4870/ 6gb OCZram -looked everywhere and this problem seems to have many causes and I cant figure out specifically whats causing it in my case. PLEASE HELP.