Diagram bug in 2005 Developer edition

I have a few databases which were created using sql server 2000 developer
edition. I copied them to the directory where the sql server 2005 databases
are located. I used "Attach" by right clicking on databases and attached the
databases. When I went to view the diagrams, I got a message that database
diagram support can not be installed because the database does not have a
valid user. Strange I thought since I'm using a laptop and everything else
was installed under the same windows xp login. So I changed the owner to 'sa'
and I got the same error message. I fixed the problem by changing the
compatability from 8.0 to 9.0. I did not change the owner on the other
databases that I attached. I got a message for sql server to install object
support, I had it install it and then I could view the diagrams just fine.I don't know if it's considered a bug but it is documented
in the read me file - ReadMeSQL2005.htm which should be off
the root of your installation media. I believe the next
update to BOL will have this documented as well. In the read
me file, check section 4.8.1 titled
Considerations for Installing Database Diagram Support
-Sue
On Thu, 13 Apr 2006 10:22:01 -0700, Doctor Who
<DoctorWho@.discussions.microsoft.com> wrote:
>I have a few databases which were created using sql server 2000 developer
>edition. I copied them to the directory where the sql server 2005 databases
>are located. I used "Attach" by right clicking on databases and attached the
>databases. When I went to view the diagrams, I got a message that database
>diagram support can not be installed because the database does not have a
>valid user. Strange I thought since I'm using a laptop and everything else
>was installed under the same windows xp login. So I changed the owner to 'sa'
>and I got the same error message. I fixed the problem by changing the
>compatability from 8.0 to 9.0. I did not change the owner on the other
>databases that I attached. I got a message for sql server to install object
>support, I had it install it and then I could view the diagrams just fine.