Did some more research and based on the following article from MSDN,

SQL SERVER 2005 Enterprise is not supported on WIndows 7.

http://msdn.microsoft.com/en-us/library/ms143506%28v=sql.90%29.aspx

Yes sir.

Thanks for your help.

Weird it still appears I did click from the database diagrams section.

I may have clicked on delete tables from databases vs remove table from diagram.

I did rebooting SQL Server 2005 and it appears. I did research but I was afraid the...