Hey, I've got Sapphire's HD6750 on my Win 7 x86 and I have a problem with installing older drivers from 13.3 Beta 3. I, of course, uninstalled these, restarted and then installed 12.4. But then i had CCC crashing every 5 seconds and some load mmdriver error. I couldn't even start Skype. This happened on 12.4, 12.6 and 12.8. After installing 13.3 Beta 3 again everything went back to normal. Does anyone here have any idea what was the problem?