I have links to secure sites inside Excel spreadsheets (currently 2010, but I'm pretty sure it's the same with Office 2007).
When I click on them, instead of just launching the system browser (Firefox), and seeing the password prompt from the browser - it seems that Office tries to connect to the site itself. So I see a certificate warning and then a Windows Security password prompt.
After that, if I get the user/password correct, it will open the browser which then prompts me again.
This is annoying and insecure (Windows/Office shouldn't need that password)
Why does Office do this and how do I stop it?