Problems

I am having problems running 10.0. DLed it (DVD version) and it install great but, when it does its last reboot I hear the music but my monitor(Viewsonic VE910b) reports Out of Range. I've tried setting the resolution at 1024 X 768 but nothing works. Even tried using my wifes monitor(el cheapo) and her's blanks the monitor. Help! Please. Video card is an ATI AIW x600. Thanks