hi - I think I have the same problem... attached is a screengrab of what
the Open dialog in Acrobat Pro DC (build 2015.007.20033 running on OS X
10.10.3, on a Late 2013MBP Retina). The lower section of the dialog
can't be resized, and the top right section flickers. It's the same no
matter which of the View modes (grid, list, panels, preview) is
selected, and as rshhd says, it makes locating the right file a
challenge. I've tried searching for the same issue around the web, but
not found anythin...