This is the only setting for cores I see, and I think this should be the best setting, although I've tried it both ways, no difference, both just run on the same cpu core... frustrating, the other cpu core can be as low as 0%, still both clients just run on core1 of my cpu.
I've done lock and don't lock.. if I could spread the load, I could use both cards!?
Oh, and if I start it on my 9800gtx, I watch rivatuner and the gpu temp jumps, I check my 280, no change, if I start my 280, same thing in reverse. Remember, x2 athlon here, why do you think I'm dreaming of a p45 xmas?