Laptop Screen Keeps Blanking Out

I have a Dell laptop with Window 7 and my monitor has started blanking out on me with no advance sign at all and I have to reboot to get it back up.


If an audio or video is playing, the sound continues until it reboots. I try updating my display adapter but it said: "Windows has determined the driver software for your device is up to date"

Does anybody know what I need to do to correct this? My Bios is A10