DataGrid Control issue - HELP!!!!

I am running into an issue with the DataGrid when I switch between rows.
The scenario:
I am using a datagrid with an ado DataControl as the DataSource. The problem occurs when I am updating the datagrid, when I switch between rows. Somehow, the synchronization between the grid and the underlying DataControl's recordset is lost. I keep getting a message "The specified row could not be located for updating: some values may have been changed since it was last read."

Any suggestions on how to resolve this problem?

Regards,
Nikhil