unwanted borders appearing

[axel890]

I recently made a change to use my nvidia graphics driver instead of the default one.
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As you can see i am getting those borders around everything from that moment.
I also tried reverting those changes back,but nothing improved.

[vasa1]

Maybe related to http://askubuntu.com/questions/896221/strange-artifacts-along-window-borders-after-waking-computer-from-sleep-mode