I fill my business object by 'Select * from cowboys order by cow_lastname, cow_firstname' and then it comes in alphabetically. But when I add a new cowboy how do I keep the data in Alpha order? The form is a SF maintenance form but the navigation keys no longer work after I add a new cowboy. ???? TIA.

Looks like there is some sort of handler on the address field which is causing it to Navigate the record.  If all of the data is changing to a different record, then the business object is definitly navigating.  Put a handler on the business object's Navigating event and put a break point on that handler... when the handler fires, post the stack trace (along with all the extra stuff that shows when you turn off the "Just My Code" stuff mentioned above.