Primary Monitor Problems [xp tablet edition on laptop]

Hello!

I recently reinstalled windows xp (tablet edition) on my laptop and it went great.

I only have 1 problem.

Before I reinstalled, I could use my 22' monitor as the primary monitor at native resolution and turn off the laptop screen.

Now that I reinstalled I can not. It will not let me click on the option to have the 22' as the primary. I can "extend" it to the 22" but I cant make it the primary. Also, even when I extend it I cant make it at the normal resolution for the monitor. The slider bar does not give the resolution i need.

I tried to install drivers for it but in the past I never had to and it worked fine.

What am i doing wrong, I really would like to fix this.
Any help is appreciated!

 

I downloaded and installed the drivers for my video card from the Toshiba website.

I still have the problem.