This doesn't happen all the time, but lately it's been occuring more. I get a blue screen saying "page fault error in nonpaged area" or something like that, and it lists the file classpnp.sys. Other times i get one saying to run chkdsk/f but it lists classpnp.sys too.

 

Anyone know what's going on? I've already scanned for spyware, viruses, and defragmented.

 

here's my computer:

 

Dimension 8250 3.06 ghz

1.25 GB ram

ATI radeon 9700

Windows xp with service pack 2