Well folks… here goes. It looks like it may have been bad memory all along. Now this is the same memory that was in this machine for the last year or so. What made me check it was, while running TechTool Pro, it keep crashing when it got to the part of testing the memory, well not crashing, it just came up with the same window as on start-up - Must Restart… So I took all of the memory out, and so far, so good. YES I'm taking ALL of the data off just in case, but it seems to be working fine. I'll keep you up to date in the morning after I'm done working some more tonight. Skip PS THANK You all for your help and advice.