Thanks again. I removed some of the memory because I have to get some work done, so even though the machine ran slower, I did not get a blue screen which supports a bad stick of memory. Now, the video card is going crazy. This was an nvidia GT9500 that I purchased seperately from the rest of the machine, so I swapped it out for the asus 1 gig video card that came with it, and now windows explorer keeps shutting down and restarting.
Could the 64bit windows7 have anything to do with any motherboard or hardware incapability?