I've read a few different threads that touch on this subject, but all degrade into rants about why the person is using Internet Explorer... If possible I'd like to avoid that here. Basically I seem to be one of VERY few people who are having problems with Internet Explorer and plugins... In my case I'm having trouble with QuickTime specifically. The Apple troublshooting does nothing to help. (It is mostly OS 9 specific.) Here are some things that may be clues: When I first got OS X I moved IE out of the Applications folder and into a sub-foler called Internet... (But I can't remember if QuickTime ever worked...) When IE was updated Software Update failed to work until I move IE back into the root of the Applications folder When I was on QuickTime 5.x I had the Pro version... When I switched to 6.x it blew my Pro license key away. My /Library/Internet Plug-Ins folder had 2 QT plugins: - QuickTime Plugin.plugin - QuickTime Plugin.plugin.OLD (I just deleted this now) My /Library/Internet Plug-Ins folder a mix of root and tommywillb owners... I reset everything to tommywillb. (See below) The Interent Explorer Preferences --> File Helpers had everything configured for a QuickTime Plugin, so I changed them all to be QuickTime Plugin.plugin [/list=1] The permissions on my /Library/Internet Plug-Ins folder looks like this: (My ~tommwillb/Library/Internet Plug-Ins folder is empty...) Code: -rwxrwxr-x 1 tommywillb admin 6148 May 3 16:58 .DS_Store drwxrwxr-x 5 tommywillb admin 170 Aug 25 2002 DRM Plugin.bundle -rwxrwxr-x 1 tommywillb admin 963 Aug 25 2002 Java Applet Plugin Enabler drwxrwxr-x 3 tommywillb admin 102 Jul 27 2002 Java Applet.plugin drwxrwxr-x 3 tommywillb admin 102 Feb 26 15:26 JavaPluginCocoa.bundle -rw-r--r-- 1 tommywillb admin 328643 Sep 17 2001 PDFViewer -rwxrwxr-x 1 tommywillb admin 124595 Jan 14 2002 PluginLib [b]drwxrwxr-x 3 tommywillb admin 102 Apr 28 16:20 QuickTime Plugin.plugin[/b] -rw-r--r-- 1 tommywillb admin 22081 Mar 14 2001 ReadMeSVGViewer.html -rw-r--r-- 1 tommywillb admin 0 May 3 16:53 RealPlayer Plugin -rw-r--r-- 1 tommywillb admin 0 May 3 16:53 RealPlayer Plugin.xpt -rw-r--r-- 1 tommywillb admin 2237790 Mar 14 2001 SVG Plugin -rw-r--r-- 1 tommywillb admin 197741 Mar 14 2001 SVGViewer.zip -rwxrwxr-x 1 tommywillb admin 1089763 Feb 24 16:25 Shockwave Flash NP-PPC drwxrwxr-x 3 tommywillb admin 102 Aug 25 2002 Windows Media Plugin -rwxrwxr-x 1 tommywillb admin 856 Feb 24 16:07 flashplayer.xpt -rw-rw-r-- 1 tommywillb admin 2394 Apr 15 17:23 nsIQTScriptablePlugin.xpt Is this enough information for anyone to help me figure out what the problem is? At this point I don't know if this is an OS X thing, and IE thing, a permissions thing, or something else.