Movie problems

Im running on vista and im having some problems. When i attempt to watch a video only the sound works. There is nothing to visualize, the sound design thing is the only thing i can see.

Any help is appreciated.

That commonly happens to me when I forget to install XviD/DivX codecs.
I’d suggest getting the free XviD codec or the free VLC media player. Either solves
the problem. The codecs make it work in win media player, vlc is a standalone with codecs included.