BSOD Help!

I don't know if I posted this in the correct place.. but here goes. For some reason I will occasionally get a BSOD, the blue screen says "PAGE_FAULT_IN_NONPAGED_AREA". And that's really all I get, when I get things turned back on, windows tells me it's a 1066 error and I don't know what to do! The blue screen doesn't give me any clues on what files have caused this. I have tried reading the minidump thing, but I have no idea how to open those things.. I have tested my memory with memtest.. and it doesn't come up with anything, but I don't think I a using it correctly. Can anyone lend me a hand?