Why is my slide layout templates toolbar blank?

[S]

When click "New Slide" or "Design" button, Slide layout toolbar brings up
different styles but everything is white/blank (still there but cannot see
them)

other options under "slide design" work properly (ie. "color schemes"
"animation schemes")

 

[John Wilson]

Theres a recent post here

http://www.microsoft.com/communitie...ea85&mid=908274de-5d73-4b60-9b6e-43a16d0ea9a4

Theres another link in that post too but sadly no firm answer.