After the installation I went to the SBS Console to add new users. This goes good execpt for the new user "service". When i add this user from the SBS Console and fill in the userinfo and click on add, the following message appears:
"The User Account cannot be added. Ensure that the Active Directory Domain Services service is running."
When i try to make this user from ADUC then this message appears: " Windows cannot create the new user object because pre-Windows 2000 logon name service is already in use. Select anopther name"
I search for any user wiht the name service but didn't find it. Also a didn't change anything in the OU names.
See attachments for screenshots