something strange... when I start the miner, it works ok, but after some difficulty adjustment from the pool (I guess it is that), I end up with a large fraction of rejected (made some adjustment -f 0.5 (to multiply the difficulty by two) it seems a bit better, but I still have large number of rejected).
The hashrate is kind of off, the reported hashrate is 1.8MHash/s but in fact I am hashing at 170MHash/s
Thanks for the calculations

im hashing at about 1.2mh/s - and it shows 80kh/s.. so ill adjust
I'm getting a lot of duplicates from your miner also - Duplicate from DF3bxpumSwRAciYKxcCEEBogfwHnAkW6CE, (f8000011 01000000 53d6e07d 47038a33)
Though that seems to have stopped now