I'm running up against a brick wall trying to change the sites listed in IE as trusted sites. On client machines in our domain the trusted sites are already configured and are grayed out from adding any additional sites.
I've tried finding where these are setup by opening Group Policy Management Editor and then editing our domain GPO however, I can't find it actually being set anywhere I look.
I've looked in:
User Configuration > Policies > Windows Settings > Internet Explorer Maintenance > Security > Security Zones & Content Ratings > Modify Settings > Trusted Sites > Sites
When I look here, it shows the sites that are added as trusted sites, but all of the options are grayed out so I can't make any adjustments.
Note: It may be of use to know that when I looked at the Internet Properties it says at the bottom "Some settings are managed by your system administrator" even though I'm looking at the group policy.
I've also looked in:
User Configuration > Administrative Templates > Windows Components > Internet Explorer > Internet Control Panel > Security Page > Site to Zone Assignment List
I've set this to "Not Configured" but it doesn't appear to have any effect on the site settings.
This is a Windows Server 2003/2008 hybrid environment and is at the 2003 functional level.
Where else could this be set that I'm missing here?
Thanks in advance for any help!