Toshiba Display only displaying 5/6 of screen

[Sodamoogle]

Below are screenshots of what's happening, Can someone tell me if this can be fixed? As far as I know how it happened is two morons tried hooking up S-Video without knowing what the hell they were doing, next thing they know, this happened.

http://www.kupo-nut.org/images/laptop-1.jpg

 

[SOcRatEs]

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Right click the desktop, select properties.
Click the "settings tab". What do you see?