I have, what seems to me, a strange problem. The company I work for uses sharepoint for our intranet sites (no, this is not a sharepoint question) and we have recently upgraded to a new version. When we upgraded, the site now needs to be added to the local intranet site list in order for it to automatically receive windows log in credentials and log users in to SharePoint. This is a simple fix, I have done it on dozens of machines, but on a select few the fix doesn't seem to work. Whenever I add a website to the intranet sites list, it acts as if it was added... then as soon as I close the dialog box that is used to enter and display this info, it's gone, and by gone I mean I open back up the box and it has disappeared from the list. There is no trace of me ever having changed a setting. There are currently no GPOs active that would cause these to be taken out of the list, I have tried adding the sites directly into the registry and they disappear there too, I'm not sure if this is the right place for my question but I figure it's a start. So again:
Problem: Sites do not stay in proper security zone, all traces of them existing are erased on closing of dialog box.
Troubleshooting Done so Far: Tried directly placing in registry, no fix. No GPO's are active to remove said sites from zones.