Sgminer isn't working properly. RPM/temps/hashrates are bouncing all over the place, WU is 0 and accepted 0 as well... 5 MH/s on the miner and on the pool as well. Any idea what might be causing this? Using the example-280x .bat as is, with worker/user/pass configured of course.

Update: I got 3 280x Powercolor cards, seeing 5.1 MH/s on the miner but the HR on the pool is fluctuating a lot.