When I have Shadowbox JS activated, I get an error on every page (even pages that have no videos on them). It's one of those errors that shows up on the status line of IE7, and when I click for details it says:
Problems with this web page might prevent it from being displayed properly or functioning properly... Line: 6 Char: 1913 Error: 'J.parentNode' is null or not an object Code: 0 URL: (any url from my site -- www.invisibleshoe.com)
I had a user call today reporting a different error:
A website wants to open web content using a program on your computer. This program does not have a valid digital signature that verifies its publisher... Name: c:\program files\quicktime\qttask.exe
If I disable the plug-in these errors disappear.