I'm having trouble opening some of those newer Warhammer RvR videos that have been posted to war-rvr.net. I keep getting a "Media Player Runtime Error" (followed by a code number that I can't be bothered to transcribe). I never had this happen before, I could always view the videos form that site. What's going on?
What's going on is you're posting this on the wrong forums. Why not just go over to war-rvr.net (or whatever) and ask for help in their forum section? I'm sure you're having codec issues of some kind, though I couldn't possibly begin to deduce exactly what kind. Nor do I care, frankly.