ive had my current system with a single ati card, but just got 2 xfx 6600gt's and set it up for sli. i uninstalled the drivers with driver cleaner, took out the ati card and installed the 2 cards, installed the sli bridge and plugged the monitor cable into the top card, left hand dvi plug. i then installed the latest forceware driver, rebooted and everything works. all except the sli part. how do i enable it? there are no prompts that pop up like the slizone website stated. is this something i do in windows? plaz help and sli noob!