Same bug chechk 50, page fault in non-paged area. "Probably caused by memory corruption"
Anyway, I just looked back through the pages of this thread and wonder why we could still not find the cause.
I saw that you had a 124 bug check but never referred you to go through this > Stop 0x124 - what it means and what to try
Go through it now, step by step. Let us know your findings.