I've got a problem with my viewer pane not loading up movie files(except .mpg's but even then I only get sound). I'm almost certain it's windows x64 problem cause viewer has worked straight out of the box back when I was on xp media center. I found faq (i had some problems loading .wmv files awhile back) here but my all solutions there did not work.
I noticed that when i do click on movie file that it opens it .txt format and .txt plugin loads. I disabled it and all i get blank screen(though it looks like it's about to load up for like a half of second).
Just for fyi the codecs i have installed are divx(for divx),coreavc(.mkv's) and ffdshow(for everything else). I don't beleive it to be a codec(only had ffdshow when I first started) conflict though.
Hope this helps, thx in advance