I have a 5850, and have been mining with it for about a week.
With GuiMiner I can mine bitcoins at about 275Mhash/s. This has not changed.
A couple of days ago I setup Litecoin mining and it was working at about 350Khash/s, which at the time was about the same profit as Bitcoin.
But now when I mine litecoins I'm only getting 35 khash/s.
I'm getting the same speed with CGMiner or Reaper. I just started the exact same setup I had last week and I'm getting the crappy result. I've been messing with settings and config, but no change.
I have rebooted, no change. I can change back to Bitcoins anytime and get 275Mhash/s with CGMiner, but when I change CGMiner to Scrypt mining it drops to 10% what it should be getting.
I can't think of anything that would cause this. Any thoughts?
Scrypt CGMiner mining: http://puu.sh/2d7Mp
Bitcoin CGMiner mining: http://puu.sh/2d7NW
Current CGminer command: cgminer --scrypt -o x -u Liquid5n0w.1 -p x --intensity 12 --worksize 256 -g 1 --lookup-gap 2 --thread-concurrency 7200 --fix-protocol