Problem with pocket flash difuser on EOS 60D
Looks like your diffuser slides onto the hot shoe. Make sure it isn't holding down the tiny switch under the flat spring in the right-hand side of the hot shoe. That switch tells the camera that an external flash is mounted, and therefore that it shouldn't allow the built-in flash to pop-up.
|Classic Cruisers by Surfwalker|
from Song Titles- Little Deuce Coupe
|Gosford Reflections DP by MarioSS|