Hi there! Firstly I would like to say that I am using Rivatuner for a long time and it was always working great, without any problems. But today I installed new ATI beta drivers: http://forums.guru3d.com/showthread.php?t=277451 After installing new drivers I opened Rivatuner to check if clocks have stayed the same. But here is the problem, because it seems that memory and core clock can be overclocked, but the settings are those from CCC, because whenever I try to oc in RT in just goes back to CCC clocks. Before this new beta drivers I was able to oc to 810mhz core clock. And there is something strange with core clock: As you can see, it is jumping from 500 to 790mhz regulary.