In LR4 Slideshow module the bottom row of buttons starting with STOP, LEFT ARROW, RIGHT ARROW, FLAGGED PHOTOS, PLAY, ABC Will not show buttons until I hover over them with my mouse, they reappear one at a time as you scan over them but still are separated by black spaces. The preview dropdown is blocky and just black and gray and also the rest of the bottom bar is just black and gray. It also will not show my Watermark, Text overlays, or identity plate. WHY? Please help. Is there a customer service number that I can Call?