I'm getting all boos when I do manage to connect to maxcoinpool with a gtx 580
cudaminer.exe --algo=keccak -d gtx580 -L 128 -l F1024x16 -o stratum+tcp://maxcoinpool.com:4000
These do verify on the bench. Someone mentioned getting accepts, what settings or are you still getting accepts with the pool?
Make sure you are using the latest binary released earlier today.