1080p 24?

The WDTV Live seems to output 1080p 60 when I set it for 1080p 24 (the original WDTV does 1080p 24 just fine in my system). I can’t get the new unit to output 1080p 24.  I’m using the original firmware. Any help welcomed.

My Problem is solved, my mystake, and very bad translation of the German Menu ^^