This fixed the problem...
I've spent the past couple days trying to get UC to run stable on my system. Thinking that i had followed the patching directions correctly, (do not attempt to do anything at 3 am and expect good results) I wasted a bunch of SC's time...sorry... but I reinstalled the game, patched correctly, started at Earth Gamahqhq and "BOOM"... CTD.
....back to the forums and i noticed this reply for CTD's. I have 1G DDR RAM, one slot is an XMS Corsair PC2700 512MB, the other, unfortunatly, was purchased at a name brand retailer, and its overclocking abilities are "0"...
As the post said, I turned down the the RAM speed from 166(333Mhz) to 133(266Hhz), rebooted and restarted the game. This seemed to fix the problem, but i wanted to be sure so, i took the Generic DDR out, reset the RAM speed back to 166(333Mhz)and have been playing all night and love every-freakn-thing about this game....!!! go red sox
Bammer