HELP me! monitor/graphics card related

I was messing with my display settings in the ATI tray tools and I somehow set it up to do a dual screen but somewhere along the line I told it that the main monitor wasn’t the one I wanted it sending info to. Now what is happening is that there is another monitor outside (to the left) of my current one, and it only sends a black screen to my actual monitor. The strange thing is that I can get the mouse cursor to appear on the screen, but I can’t get anything else to appear.

Is there a hotkey I can press to get me out of this? I’m currently digging through piles of old manuals searching for my graphics card, but it is old, so I don’t know if I still have it. Hopefully there is like a master reset hotkey of some kind!

Thanks for any help.

Have you just right-clicked and then went to the CCC? (Catalyst control center.) From there youll see all the options you have for your ati card.

This usually works for me. To unplug the monitor, reset the comp, then plug it back in.