[Rhinosaur]

Thanks dude, that comment was lighthearted desperation - not a dismissal. :) I appreciate the suggestion.

I guess I could remove the Accel cards one at a time and test, but I have no idea how I could test (without) the Core card?

I have 4 sticks of RAM, should I try removing each one and testing with the remaining 3? Does it matter which RAM banks are populated? (ie. if I remove #1, do I have to shuffle all the others along 1 place?)