Dell 2005fpw Prob

[Melchor]

Lately I've been noticing while playing games, around the edge of the screen theres some streching issues. I am running the monitor in native res (1680X1050) yet I can see these brightly colored strech edges showing. (If I set the monitor to zoom in, it goes away, but then It starts eating my taskbar on the desktop. Has anyone had this issue before?

Thanks for any feedback!