I'm running windows 7 and have my 22" monitor coming out of the VGA port (working fine), and a little 15" coming out of the S-Video port on the same vid card,(was working fine) . I had it extended to the 15" when I first hooked it up and everything went well, then I selected "duplicate these displays" and didn't like the appearance so I tried to revert back, but to no avail. Now I have my 22" working and looking like it originally did, but the options in the display menu won't allow me to extend back onto the 15" it says it's unable to apply these changes, and the resolution and orientation fields are grayed out. How can I get it to go back to it was and allow it to display onto the 15" again??