So we're stuck using IE @ work and one of the machines recently started issuing the “This page contains both secure and nonsecure items. Do you want to display the non secure items” pop-up every time the user logs onto our file management system.

I went into IE options and changed the Display Mixed Content from Prompt to Enable, restarted IE and I'm still getting the message anytime IE connects to a secured page.

I've added the domain where our file management system is hosted to the "safe" list. I've changed any and all "mixed content" setting in IE from Prompt to Enable. I've restarted the machine. I've upgraded from IE 7 to IE 8 and now I'm officially stumped.

Has anyone run into a problem like this before?