Nootebook Though Monitor Screen

Hi

Before i upgraded up to windows 7 ultimate on my nootebook i use to able to connect a monitor. For some reason i can no longer get the nootebook contents though the monitor screen.

I have tried the following

http://oi39.tinypic.com/aos4jp.jpg


I cannot open the resolution drop box it's stuck on 800 x 600


http://oi44.tinypic.com/n5rbj6.jpg


I may be doing the wrong thing, so i would be grateful for any advice.


Thanks for your help in advance.