I had the black screen problem (Win7x64) and found a fix for me:
* installed "ffdshow tryouts" and enabled MPEG2 Decoder
* downloaded Win7DS Filter Tweaker: http://fileforum.betanews.com/detail/Win7DSFilterTweaker/1262732488/1
* set ffdshow as 32bit decoder for MPEG2 and klick "apply"
Hope...
