Wait seriously? Just put the bridge in and enable it in CCC? Didn't know you could do that and I could've sworn someone suggested against it because they got a performance hit. And sure send me your poclbm through mediafire or something I downloaded the one off of
https://en.bitcoin.it/wiki/Poclbm. Looks old though; I was about to check on the software board. Sorry I don't have a lot of experience with poclbm and I've been using phoenix+phatk but its just WEIRD why this happens. The miner doesn't say idle or anything but it just stops doing stuff.
EDIT: After a little more searching I found
http://forum.bitcoin.org/index.php?topic=24816.0 which is similar to what happens with mine I think. I haven't seen it happen while I was there at the computer but I suspect that this is what is probably happening. Still though its only a 50 Mhz overclock from stock and the temperatures are still reasonable so I'm confused how this could happen. My crash happens maybe once every 12 hours and usually not frequently but still this thing is a pain in the ass already.
EDIT: Just looked through the Event logs and I do see warnings with code 4101 saying that essentially the display driver crashed and that it recovered. Odd that a 50 Mhz overclock is causing this.