Hi,Today I was playing counter strike:source and while i was playing it all of a sudden turned to a black screen and said " HV frequecy to high". So I restarted it and in windows it was at 60hz and now eventhough I press it to 100hz it is still at 60hz. Iv tried reinstalling my video card drivers and nothing. Tried reinstaling monitor drivers but the monitor cant be found. Does anyone know what is going on? (my monitor is a viewsonic P95F+ and the card is a ATI 9800 pro) Thanks