GSync Monitor Issues

Can someone help me with a Monitor issue on my Acer Predator XB270hu?

I turned on my PC this morning and the desktop no longer reaches the edge of the screen. There's a black border on top and to the sides that wasn't there yesterday. I didn't change any settings.

I reset my monitor to factory defaults. No change.

I installed new Nvidia drivers for my 980 and did a clean install. Nothing.

Went into the Control Panel and tried to adjust the screen size but it's at maximum width and height and won't let me expand further.

WTF is happening and how can I fix it?

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GSync Monitor Issues