I ran version two for a long time as well. Really liked the simplicity of the GUI, but I really like 4 too. Recommend it to everyone that will listen.
Thanks for the tip on the RAM. I was starting to suspect that it might be the culprit. I did notice that the voltage set my the bios was .2v light. This PC has Crucial Ballistix and the recommended voltage is 2.0
It was running some loose timings so I left them loose and bumped the voltage up to +.2v to see if it helps. Been one day without any errors, but I will still run a test on the ram and report back with the results. If it is bad, I know that Crucial has great RMA service.
Thanks so much for your help.