Problem with editing equipment

While changing some information on turf rotaries (to different head model and design pressure), I notice that the changes don't show up in the Irrigation Manager until after I exit the manager, then open it again. After changing the design pressure, the edit window just closes, instead of returning to it after I select the pressure. Also, when this happens, any edits in the text areas don't save (though the pressure change does), so I have to make them again. It's taking several steps, but the changes can be made. Seems like something is a bit broken, though.... Thanks!