Looks like there is no hope
😞 A little disappointed there has been no reply to this post but i guess no one has an answer. I know there is a problem with the core's been locked on the 5850 but with a little editing of the cfg file you can play around with the clock speeds with the Afterburner program, so for now i will stick to that. I hope some one will figure out how to do it with the ASUS GPU Tweak.
Thanks