In simple terms, I have been getting the kernel stack inpage error for about a month now - a couple times twice a day, more typically every 3-5 days. Both of my hard drives (C for boot and programs; D for data) have been imaged in the past 30 days without error or incident. Avast! sweeps the computer each night and there are no viruses. I run most of the free malware scans on the computer, and no spyware is found (and I'm a cautious user - it woudl be very hard for me to put malware on the computer, even by accident). The computer was built from newly-purchased parts in March 2006 and runs Windows XP SP 3. It gets all the Windows updates as they're pushed to users. I have attached the most recent BSOD dump file. And I ran chkdsk /f /r tonight on the C drive and this is the result I got: Aside from the above, here are things I've tried to this point: Reseated the SATA cables for the drives Vacuumed dust from the case Turned off the pagefile, defragged both HDs, turned pagefile back on Updated all drivers Given all this, any ideas as to what the problem might be? I have attached the most recent dumpfile.