Hangs going to last record in data grid if another tab in the Editor is clicked (4249682)

If I click on the 'Last Record' button in the Editor's data grid and then click on another tab in the Editor before it has fetched the last record, Toad hangs up and does not allow me to use it until it is done. It also has problems with maximizing and minimizing other applications during this period. If I were to pull up another window (Editor, Schema Browser, etc.) or another application while it is fetching the last row there is no problems. It is only when clicking on another tab in the same editor that the last record fetch is happening.