When I open a video in IE, it plays the visual content with no sound. When I open the same video in Firefox, I get the sound only, with no visual content.
This problem occurs with videos on Comedy Central and Gizmodo.
Youtube videos work just fine, even if they are embedded on other websites.
My OS is Windows XP. I don't have realplayer installed. Enabling or disabling hardware acceleration doen't make any difference.
