I'm having an issue with smartcoin not using one of my GPU's. This is a 4x5830 box. Notice that GPU[3] in the top section is idle, but GPU[0] in the bottom sections:
*snip*
Help?
I think I had this issue. Verify that your Devices (option 9 I think from the control menu) are each lined up with an OpenCL device/GPU. I had only 3 out of the 4 5830s working from the start and I had to manually add the fourth card before all 4 started working.
*edit* I also recall making a new profile, but I'm not sure if this step was necessary. Hope this helps!