Desktop Display is offset by an inch.......

When I started my computer a few minutes ago, my desktop was offset to the
left by approximately 1 inch. Everything works like normal, I just can't see
what is normally on the left side of my screen. This is not making me happy
:(
Anyone know a quick way to fix this problem? It can't be something to hard,
and I'm not sure what is causing it to happen.
Any help would be appreciated. Thanks
.