Simply fix for these lines. They are the same problem as the flickering shadows. Simply go into options, change vsync setting (if you have it on set it to off and vice versa), go back into the game, then go back into the options and change vsync back to the original setting and it will be fixed. It may come back but for me it has only come back once so far, but I mainly use D3DOverrider and the runs perfectly smooth 60fps 95% of the time. EDIT: I have actually uninstalled this new Application Profiles as it only adds a few xfire profiles and they are quite rubbish. To actual drivers have more performance improvements in themselves than in this. Just one question? So since 10.2 have ALL the application profiles been separate to the driver? So without an Application profile installed does this mean I have no xfire profiles on my PC or are there still profiles within the driver set?