Hi, I've been recently using the ATI tool .24 for OC and experiencing problems. It works fine when trying to find the max core and mem, I can set it and scan for artifacts and all seems well. However, when restarting the computer the day after, OpenGL is gone, artifacts are everywhere, and finally catalyst 6.8 uses the vpu recovery and shut everything down... I have to unintsall catalyst, and install it back and OC again and it works for another session... The next startup is the same; OpenGL is gone and problems everywhere. Tx in advance!