I cant watch Podcast in Itunes

[thegemmell]

Hey, idk if this is a problem with my computer or the actual Itunes software since Itunes is apple i figured this would be the best place to ask, I'm a PC user, (please don't flame me!!! because According to your commercials I should by a PC, I'm a boring accountant)

Whenever I try to watch a video podcast in Itunes the picture is all messed up the screen is white and all I can see is a faint outline of purple and red versons of the video.

They work fine on my Ipod, and I used to have the Zune software and they worked fine there

It used to be just the podcasts from the G4 network, Like X-Play and the Man show, but recently all of them do this, Like Ask a Ninja and when I go to the file and open one in Z-Player they work fine. my TV shows and Music videos don't do this

what is going on, because If i needed one more reason to jump to Zune this is it.