Is there a recent/more stable Windows GPU miner that is better? Or is Linux more stable at the moment to mine with? I'm doing 68 MHS, but I getting less than what the calculator reports (4.70 Ether calculator vs ~3 Ether actually).
I think EVERYBODY getting little less than calc shows, it's "normal".
On which pool are you mining??
I tried 3 different pools till now, there are some differences in profit.