I'm using a 4870X2 and am attempting to overclock it. During one of Vantage's feature tests, "Test 3 // POM" the graphics seem....off. Well, the graphics themselves are fine but the rendering is like stuttering or twitching, as if it were out of sync. I ran Vantage and left to go shower before overclocking to have results to compare it to after overclocking, so I couldn't see if the issue occurred then. The issue still occurs even after resetting all Catalyst Control Center drivers to default. Aside from that though, the entire test finished without any issues and I did gain 1300 points on my GPU score from raising the clocks to 800/1000 from the default 750/900. Temperatures are good, stability seems good, I was able to play a couple of games without any sort of issue. The ATI Overdrive test accepted the 800/1000 clocks and said Passed. If it matters I'm using the recently released 10.1 drivers. Do you think this is a cause for concern or is my OC fine?