You have to give it more than 10 mins what are your accepts and rejects on your miner?
I ran the miner overnight. Here are the miner's stats as of this morning.
[2013-07-20 08:25:36] Pool:
http://coinworld.us:8884/[2013-07-20 08:25:36] SOLVED 16 BLOCKS!
[2013-07-20 08:25:36] Share submissions: 34172
[2013-07-20 08:25:36] Accepted shares: 21492
[2013-07-20 08:25:36] Rejected shares: 12680
[2013-07-20 08:25:36] Accepted difficulty shares: 202557
[2013-07-20 08:25:36] Rejected difficulty shares: 120888
[2013-07-20 08:25:37] Reject ratio: 37.1%
[2013-07-20 08:25:37] Stale submissions discarded due to new blocks: 301
[2013-07-20 08:25:37] Unable to get work from server occasions: 2
[2013-07-20 08:25:37] Submitting work remotely delay occasions: 1
Even though the rejection rate is high, the results are good.