Random Elements Become Unselectable

It seems as though several of us in the office have been experiencing an odd issue where we will be working in a file and move a small text element (it could be almost any type of element) and right after it gets moved, the element will disappear. If you change the zoom level, it will reappear, but you won't be able to select it or manipulate it until you exit the design file and get back into it. Any ideas?

MS V08.11.09.578