Why is the reject rate THAT hight? so far, I have 49 accepted and 39 rejected!
I don't have enough info, but - of course - it does not sounds healthy

. What miner parameters are you using? Something might be wrong here...
Using diablo linux, with -f 10 -v 2 -w 128
got two 6950 cards, with a combined hashrate of 666 Mh/s
had to switch to a different pool after mining for several minutes on your pool with a ratio of 82 accepts / 74 rejects