Back to genoil, cause 6.1 not work for me and 6.0 is waste my electricity.
You mine ETH solo? Not with Parity? Because I got reports about problems with Parity, I changed requests a bit in v6.1, it could cause problems with older version. Changed it to original version, please try this:
https://mega.nz/#!r8IWGIZS!zHiYJ0N2Ywes6ReWoe-VWjMmDCiIfmUGrDInB2nDtJELinked with cuda 7.5, just copy .exe it to main miner folder.