Setting up single sign-on in Sharepoint 2007, errors...
Setting up SSO was a pain!
- User ... failed to configure the single sign-on server. The error returned was 0x80630005. Verify this account has sufficient permissions and try again.
- You do not have the rights to perform this operation
The GUI says: Single Sign-On Administrator Account
In the Account name box, type the name of the group or user account that can set up and manage the single sign-on service. This account must be a member of the same domain to which the single sign-on service account belongs.
Solution: Even though the GUI says SSO Administrator account, use the service account you used for the Microsoft SSO service to log on to the machine, call up the administration website and enter this account here!
This is completely stupid, as you'd normally never log on interactively as a service account.