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As seen in the screenshot, the area will hold artefacts of what ever is put over it. I cant access x+- buttons.

In this instance, I had been running google chrome and browsing reddit. I was watching fullscreen video before and the shading of this rectangle were present though video was being rendered correctly in it. In 3D games it is a black rectangle, no rendering in it.

I am running nvidia g210 card with the experimental 310 drivers.

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Can't you provide an image that shows more of the problem area and less of the rest of the screen? Right now, your problem is < 1/100 of the image. Also, were you running something "full screen"? And do mention your graphics. – user25656 Mar 13 '13 at 2:43
Here's another closed question about lingering artifacts: unresponsive window imprint on the desktop. – user25656 Mar 13 '13 at 2:57

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