So I just installed this 980 in Cheetah, and hooked it up to POEM. Only other thing I'm crunching right now is Enigma on CPU. When I try to get more WUs, it gives me this error in the event log:

1/19/2016 8:55:27 PM | Poem@Home | Not requesting tasks: don't need (CPU: not highest priority project; NVIDIA GPU: job cache full)

Every project I'm connected to is set at 100%, so I'm not sure what I've got set wrong. It's working, but only downloads 1 NVidia GPU WU at a time - so there is a lag for it to upload and download the next one when it finishes, and I don't like it sitting idle. heh...
Thanks for any help!