It's hard to explain, and I cant figure out how to take a screen capture of what my screens look like while trying to take a screen capture, so I took a picture of my monitors before grabbing a region and during the grab region selection.

IMG_20140108_134418_413.jpg is before
IMG_20140108_134451_441.jpg is after

For some reason the image from my third monitor (the TV up top) shifts down to the lower 2 screens and I can only select regions inside this area.

Edit - Image 413 didn't attach 1st time.