Maybe this a stupid question, I don't know.. I tried searching quite a bit but didn't find anything regarding special settings. I just began mining again after a long break and I made the switch from guiminer to cgminer. My computer has 2x 5850's. With guiminer and the tags -v -w256, I get about 340mh/s per card with 875/300. With cgminer, I get 305-310mh/s. I'm running Catalyst 12.1 drivers. I've played with the intensity and checked the clock speed with Afterburner, and the cards are running at about 60*C each. Is there something I should be doing differently?