I have totem installed on an intel dual core 2 pc with fedora.x86_64 and on a inspiron 6000 with fedora.x86. Both setup with all the extra and livna gstreamer plugins. On the x86_64 totem setup I can generally play mpeg, wmv, avi files through firefox-1.5.0.9 without problems though somtimes the quality is not optimal. Occasionaly totem-mozplugin opens on a white screen and the video is 'stopped' but after clicking on the 'reload current page' button it starts up and plays to the end. Sometimes (why?) the video does not run in a firefox window but a seperate small totem window is opened to play the video. On the x86 totem setup the videos never play! The same white firefox window is opened through totem-mozplugin and the video 'stopped' but the reload button can not get it to play here. Occasionaly I get a video that shows a tiny 'flash' at the start but then continues with a black screen and the slider moving to the end. In this case I can hear sound perfectly. Here are some examples: http://www.ibiblio.org/openvideo/video/cmu/UGS13_002.mpg http://www.ibiblio.org/openvideo/video/cmu/UGS13_003.mpg http://ia300138.us.archive.org/2/items/AtomBomb1946/AtomBomb1946.mpg http://ia300220.us.archive.org/3/items/CongressionalAdmission/Government_and_military_perverts.wmv http://ia300220.us.archive.org/3/items/CongressionalAdmission/WhatWouldYouDo.wmv http://ia300203.us.archive.org/2/items/MCA-I_PSAs/MCA-I_PSAs_128kbps.wmv Can somebody explain why the same videos play in the 64 bit setup but not in the 32 bit setup. Could the hardware difference (nvidia GeForce 7300LE versus Intel 915GM) have anything to do with it? Please no replies plugging mplayer, etc. I have used mplayer in the past but now I want to continue using totem/gstreamer. It is not included in the distro for nothing. Alexander