Sharepoint headaches

I'm still fairly new to the administration of our Sharepoint Portal Server. But then we changed our domain name, and we came in the position where we had to get our sites back with only a SQL Back-up.

I got the dreaded "The database schema is too old to perform this operation" error message.

http://support.microsoft.com/default.aspx?scid=kb;EN-US;888839

It took me a while to figure out that the article seems somewhat incomplete. Not only does the Sharepoint Portal Server SP need to be the exact same as the version
as the one you were using when you made the back-up. Also the Sharepoint Services version needs to be the exact same.

Took me some time to figure that one out.