ooo, that's not far at all, heck I go by there on my way home from work.
I'd bet dollars to donuts the error is a video RAM issue. I'll have to look at my logbook, I think I've done at least one hard drivin' board repair in my time. I have over 200 boardsets in my basement shop, I may well have a set lurking around here myself...
I'll see if my schedule permits a visit at some point in the not too distant future