Q: Why does the QuickTime plugin fail to initialize in IE7?

Answer: There is a known problem with Internet Explorer 7 under Windows Vista whereby if you try switching video resolutions (from 320×240 to 640×480, or vice versa) the video plugin may fail to initialize and you can’t watch the video. The workaround is to close IE7 and start it again. Our recommended solution is to stop using IE7 and switch to Firefox.