hi, was hoping someone here could give me some advice on what are the best drivers to use with an ati 4850 512mb, and more specifically which work best for overclocking. I've tried every driver upwards inc hotfixes from catalyst 10.5 -10.9 and have had nothing but problems trying to overclock with CCC and overdrive. what happens is i try changing any clock values and click apply but then it reverts straight back to default clocks. Also auto tune does nothing and the 'test custom clocks' button hangs the computer and i have to ctrl+alt+del out of CCC. I'm currently using 10.4 which seems to overclock OK with overdrive but stil give loads or errors in event viewer, though the system doesn't seem affected. The games i'm most interested in working well with are bad company 2 and GTA4, so if anyone know good drivers for these would be appreciated. I have windows 7 x64 if it helps. cheers.