Here is a little update. i reinstalled windows and therefore everything else as well. Played AC3 because it was the fastest to install since my connection is slow. In game my GPU temp is 63° steady, 90% usage, 25% fan speed, 900mhz core, 1250 mhz mem, 1GB memory in use. I've also been monitoring my CPU and this is quite weird. at the parts where my fps drop to ~40 the usage is at about 50%, but when the fps are good at 70-80 fps the usage is at about 80%. i'm now sure that it can't be the drivers, i think i need to consider the CPU again. Anyone fancy any overclocking settings for the FX-4100? i'm currently at 230mhz core, 18x multiplier, 1.44V