I did the memory diagnostics test to the letter last night and let it run, even on extended this time. I watched it start and the watched the test go to 10% before going to bed. I woke up this morning to find no report again, just a standard desktop after booting up with no windows open.
I'll try this Memtest now I guess. I noticed it says Memtest86, will this be a problem on my x64 machine?
Edit: After some searching I noticed that Memtest86 hasn't been updated in over a year, but a group made something called Memtest86+ that was updated last month, is this a better option? http://www.memtest.org/
Also it appears burning to a CD is unavoidable so I'll have to dig a blank one up which may take me a bit to find. (Haven't used a CD in several months :P )