After crunching for Rosetta@home for quite some time i've decided to go with WCG because they also offer GPU computation for certain projects. However i've noticed that no matter how i set it, it always performs just 1 task at once using GPU and like 8 on my CPU (where is the GPU parallelism here!?). Is there any special reason for such behavior or can i force it to use more of my GPU ? I mean, after all i do have the HD7950 and i'd like to run max lets say 4 tasks on it at the same time. Is it possible?