IE 10 Prompting for passwords - Windows Authentication

Hi everyone...

My web site is using Windows Authentication, and grant everyone with an domain account access to the web site.

When using IE7, IE8, or IE9, the domain user can access the web site without being prompted for a password.

When using IE10, the user is prompted everytime.  Is there a setting I can change on IIS or somewhere else to prevent being prompted in IE10?

I don't want to add the website in the local intranet security in Internet Options because I do not want my 25k users to do it : I need to make it works like it used to with the previous versions of IE.

Thanks!