ok so i learned how to overclock properly now and i already did. i oc'd the specs to be the same as the standard 8600gts (675/2ghz) but now the problem is that everytime i overclock it, and then after, i go on the computer the next day or hour or w/e, my core speed and memory speed goes default. im only using rivatuner 2.06. if you know how to fix the problem so everytime i start my computer my specs dont go default, that would be very helpful. thx