HPM and WPM for two R6670 cards appears really fabulous, but I'm getting all rejects:
Tue Dec 31 14:51:52 2013 Worker 0 hpm 31.753938 wpm 75.462300 A/R/T 0/45/0 -> RPC result: Rejeccted
Tue Dec 31 14:51:52 2013 Worker 0 hpm 32.493199 wpm 75.443980 A/R/T 0/46/0 -> RPC result: Rejected
Tue Dec 31 14:51:53 2013 Worker 0 hpm 33.214326 wpm 75.385323 A/R/T 0/47/0 -> RPC result: Rejected
Tue Dec 31 14:51:53 2013 Worker 0 hpm 33.392823 wpm 75.367041 A/R/T 0/48/0 -> RPC result: Rejected
Tue Dec 31 14:51:53 2013 Worker 0 hpm 34.688549 wpm 75.531518 A/R/T 0/49/0 -> RPC result: Rejected
Tue Dec 31 14:51:53 2013 Worker 0 hpm 35.041176 wpm 75.487641 A/R/T 0/50/0 -> RPC result: Rejected
Tue Dec 31 14:51:53 2013 Worker 0 hpm 35.217282 wpm 75.465604 A/R/T 0/51/0 -> RPC result: Rejected
Tue Dec 31 14:51:53 2013 Worker 0 hpm 35.767622 wpm 75.447328 A/R/T 0/52/0 -> RPC result: Rejected
Tue Dec 31 14:52:03 2013 Worker 1 hpm 62.623408 wpm 74.159299 A/R/T 0/89/0 -> RPC result: Rejected
Tue Dec 31 14:52:03 2013 Worker 1 hpm 62.791570 wpm 74.141650 A/R/T 0/90/0 -> RPC result: Rejected
Tue Dec 31 14:52:24 2013 Worker 1 hpm 59.785083 wpm 74.215965 A/R/T 0/91/0 -> RPC result: Rejected
Tue Dec 31 14:52:25 2013 Worker 1 hpm 60.627920 wpm 74.196208 A/R/T 0/92/0 -> RPC result: Rejected
Tue Dec 31 14:52:25 2013 Worker 1 hpm 60.780532 wpm 74.172853 A/R/T 0/93/0 -> RPC result: Rejected
Tue Dec 31 14:52:25 2013 Worker 1 hpm 61.104865 wpm 74.149724 A/R/T 0/94/0 -> RPC result: Rejected
Tue Dec 31 14:52:25 2013 Worker 1 hpm 61.251802 wpm 74.119827 A/R/T 0/95/0 -> RPC result: Rejected
Tue Dec 31 14:52:33 2013 Worker 1 hpm 62.292917 wpm 74.214203 A/R/T 0/96/0 -> RPC result: Rejected
Tue Dec 31 14:52:38 2013 Worker 0 hpm 32.874920 wpm 76.053919 A/R/T 0/53/0 -> RPC result: Rejected
Tue Dec 31 14:52:38 2013 Worker 0 hpm 33.028663 wpm 76.031328 A/R/T 0/54/0 -> RPC result: Rejected
Tue Dec 31 14:52:47 2013 Worker 1 hpm 62.029195 wpm 74.305806 A/R/T 0/97/0 -> RPC result: Rejected
Tue Dec 31 14:52:47 2013 Worker 1 hpm 62.505889 wpm 74.296405 A/R/T 0/98/0 -> RPC result: Rejected
Tue Dec 31 14:52:47 2013 Worker 1 hpm 62.656776 wpm 74.283807 A/R/T 0/99/0 -> RPC result: Rejected
Tue Dec 31 14:52:47 2013 Worker 1 hpm 62.969242 wpm 74.271414 A/R/T 0/100/0 -> RPC result: Rejected
Tue Dec 31 14:52:53 2013 Worker 0 hpm 32.505005 wpm 76.159070 A/R/T 0/55/0 -> RPC result: Rejected
Tue Dec 31 14:52:53 2013 Worker 0 hpm 32.966688 wpm 76.137351 A/R/T 0/56/0 -> RPC result: Rejected
Tue Dec 31 14:52:53 2013 Worker 0 hpm 33.271081 wpm 76.115444 A/R/T 0/57/0 -> RPC result: Rejected
Tue Dec 31 14:52:54 2013 Worker 0 hpm 33.576791 wpm 76.096933 A/R/T 0/58/0 -> RPC result: Rejected
Tue Dec 31 14:52:54 2013 Worker 0 hpm 34.037703 wpm 76.075050 A/R/T 0/59/0 -> RPC result: Rejected
Tue Dec 31 14:52:54 2013 Worker 0 hpm 34.970335 wpm 76.056559 A/R/T 0/60/0 -> RPC result: Rejected
Tue Dec 31 14:52:54 2013 Worker 0 hpm 36.998328 wpm 76.034699 A/R/T 0/61/0 -> RPC result: Rejected
Tue Dec 31 14:52:54 2013 Worker 0 hpm 37.144521 wpm 76.169778 A/R/T 0/62/0 -> RPC result: Rejected
Tue Dec 31 14:53:03 2013 Worker 1 hpm 60.495413 wpm 74.420188 A/R/T 0/101/0 -> RPC result: Rejected
What might be causing this? Hardware errors? Overloaded pool? Junk card? (I actually really don't know whether this is a good "mining" card.)