I have a GTX 295 with 2 cores and an GTX 280. When the 295 runs Collatz Conjecture on both cores, it will get a computation error on the core not completed when the other completes, every time. I want to assign one of the 295 cores to some other project like GPUGRID permanently, and the other to Collatz permanently, so they never run the same project. Is this possible? I've had a 9800gx2 which had the same problem as the 295. Not sure what's going on, but when the cores are always on different projects neither ever get comput errors. What can I do?

The problem was that my OC on my processor was too high. I'm not sure why all of a sudden after months it's causing problems, but that's just how it is. No further problems.