ok so i wanted to try the new physX drivers, but seeing as i have 174.74 forceware i thought ill update to 177.79 first. it installed fine however when i rebooted my rig; it restarts its self before it gets past the "loading windows" screen, when it boots for the second time it says "error loading window...." "boot with last knowen configeration OR start windows normally...." ect. so if i choose to start windows noramally the same problem occurs. if i choose to start with last known config it boots fine but rivatuner and GPU-Z say i still have 174.74 forceware i tryed installing the 177.66 forceware but same problem PLZZZ HELP !!!!!!!!!!!!!!!!