Existing users, 
Apple QuickTime
Multimedia player & authoring system.
Version: 7.6.2
Did NOT fix "no video--only audio--in browser playback."
Feedback Type: Review
Contributed by: itismartin Wednesday, February 06 2008 @ 12:00 AM PST
Product Platform: MacOSX
Used Product For: Less than a month
Still me and lots of others who can't seem to get video to playback in browsers. Time to downgrade to 7.3.1.
Comments
Did NOT fix "no video--only audio--in browser playback." - itismartin
Don't have it installed. There is much discussion about this, indeed. Many suggestions (move the QuickTime Plugin.webplugin to the desktop comes up often as a fix). But still, I have audio, but no video. Quicktime player works fine. All browser video playback does not work fine. Oddly, I found this while trying to view a quick page made with iWeb.Wednesday, February 06 2008 @ 12:00 AM PST
Did NOT fix "no video--only audio--in browser playback." - Nico Stegeman
Same here: I do not have video, only audio in Safari (contrary to Firefox) on a Powermac G4/400 MHz AGP with system 10.4.11 :-(Thursday, February 07 2008 @ 12:00 AM PST
Did NOT fix "no video--only audio--in browser playback." - Dester Wallaboo
You probably have 3IVX installed... there is much discussion on this. Dump 3IVX and it will work.Reply to This
Wednesday, February 06 2008 @ 12:00 AM PST