Page Fault in Non-Paged Area BSOD (STOP 0x00000050) constantly on XP Pro Dell laptop. Cannot even boot in safe mode. No new hardware, unsure of new software (my dad's old laptop from work that has not been used in a few months.) Tried reinstalling from Windows XP Pro CD, however, when it got to the point of looking for existing installations of Windows, got the same BSOD. So now I'm completely stuck. Hoping someone out there has an idea for me? Thanks much.