Insane, been mining this for 1 hour and found nothing at 4.6m/hash on a R290...
Sounds like we have the same rig and hash rate, I've got the same results - nothing!
I've got about 10k from 2 blocks after pointing 8Mh/s at it for the past hour. It could be variance. What messages are you seeing in the miner?
All I've been seeing is:
Network diff set to 240k
Newblock detected on the network
Network diff set to 241k
Newblock detected on the network
Network diff set to 242k
Newblock detected on the network
This...