I have a PC with i5 2500k, HD 6670, and HD 7970, but why on my status page on web says that 3 of them are running, but the progress are 0.00%, ETA 0.00 secs, and PPD -- for all 3, but the CPU and GPU usage are all high.
edit : now the progress increased but only 6k PPD for HD 7970 and HD 6670 ?