I've got a SharePoint 2007 site set up but am experiencing issues with getting the user AD group.
When I open the site in a new browser window there appears to be no user information loaded, a symtom of this is that the "site menu" is not visible and various user restricted webpart elements are disabled.
However, if I visit the "~/_layouts/settings.aspx", or a similar settings page, the webpart elements are enabled and the "site actions" menu becomes visible again.
The missing "Site Actions" menu isn't the real problem but seems to be a symptom of there being no user information?
The problem can be repeated by closing the browser and opening a new window.
I'm at a loss for where to look for a solution, any pointers are welcome.