I've got a Mac G4 running 10.4.11 and I've been experiencing worsening problems playing WMV files. I realize this is a kludge to begin with, but things are getting weird... When I doubleclick a WMV file in the Finder, it appears to start the Quicktime Player, but nothing happens. I can view the file in VLC with no problem. This has been an on-going issue.

Now, and this is recent, in both Camino and Firefox certain embedded WMV files download but instead of playing in the browser window, I get a black window with a white bar across the top and "(no video)" in the center of the window. Nothing plays.

I had both Perian and Flip4Mac installed so I uninstalled both with no change in behavior. I have the latest Quicktime and my system software is up to date. I can work around all of this but it bugs me that it's supposed to work and doesn't. Any ideas?