I have a new HP Z BOOK 15 and I terminated windows and installed Ubuntu 14.04. All are working fine except that at certain times when I suspend the laptop and log back in again, the window panels get blank.

Here is the image of how it looks after logging back in after a suspend.
It happens all the time BUT only after two or three suspends.
I know that this is a question that cannot have a direct answer (or maybe it does!!) as I don't have any details that I can provide to explain further than the image itself.