Released 0.9.15 beta(sorry, only Windows build right now)
- improved watchdog, now it works separately and won't decrease hashrate for AMD's when use low intensity values
- improved scratchpad fail handling, now miner will try to reset it to state saved on disk and login again, only then redownload it if fail again
- added experimental parameter --opencl-force1x to support old hardware like Readon HD 7xxx
Sometimes the miner closes itself when I want to run it, sometimes says this:

and sometimes works

Yes, I made a bug there... please downgrade at least to 0.9.14, and probably use
--no-watchdog. I will build new version today with fixes. Also for future - use start.bat provided, it will rerun miner every time it closes(with watchdog it will close itself for restart if gpu hangs).