My Vista machine is suffering from repeated bluescreen crashes, caused by a
variety programs, but the usual running program is ntoskrnl.exe, although I
think it 's another driver which I haven't been able to identify causing the
problem. I've checked memory in memtest86 and all is ok. The PC can go a
couple of months without crashing and then I can get several crashes in a day.
Any help would be greatly appreciated.