Visio - Database Object owner

So, I'm using Visio for Enterprise Architects and I am starting to forward-engineer my schema into a SQL Server 2000 database.

Visio has set the owner of all of my object as my windows login name. Visio has disabled the "Owner" text box on all of my objects. It isn't greyed out or anything, but it won't allow me to type a new owner, like "dbo".

I have a little stored proc that will run through all of my objects to change the owner, but it would be nice if I could do this myself in Visio. Any thoughts