hello there, i connected my pc to my LCD screen but there is no display on it. this happenes when i install my nvidia geforce 9800gt driver. As soon as i install the driver it asks me to restart the system and after restarting, display comes till the windows runs the startup then before coming to the desktop screen my LCD becomes blank. but when i uninstall the nvidia 9800gt driver then then the screen is displayed on my LCD..... please assist me