Hi All, I've tried to search the archives for similar posts, but the oldest post that comes up in a search is Sept. 2004. I've sorted the archives by thread and still didn't find anything related to my problem. So, I'm posting and I apologize if this has been asked before. I am tearing my hair out by the roots and would prefer not to become bald! I've installed Mplayer via yum. I removed it and installed via source tarball. I removed the files from the tarball installation and installed again vi yum. It doesn't matter which way I do it, I have the same result. Mplayer works, it produces sound, but I get no video, either with mplayer by itself or from within Firefox where I've installed the mplayerplug-in. And yes, I've installed the fonts and the codecs. I honestly don't know what the big deal is. I had mplayer working just fine under FC3. I love Fedora, but with all the quirks that I've struggled through with FC4, I almost wish I had never upgraded. Does anyone have any ideas on this? Regards, Colleen