I have an XFX ATI Radeon 5850 currently at stock settings
When I overclock to any level, even just a few Hz more, my idle speeds drop to 157/300. And so whenever I'm using the idle speeds such as browsing, the screen gets really glitchy and its like the page is having lag as I scroll. I've tried overclocking with CCC and MSI Afterburner and both have the same thing. However, when I launch a game, everything is fine.
One other thing is that both MSI Afterburner and CCC is limited to 775/1125 max clocks. However, after doing some research, some people say this card works just fine at 800/1200 and even beyond. What do I do to extend the clocks?