Have you see the BlackBerry Event log - any un-captured Exceptions usually end up putting a stack trace in there.
To find the Event Log on a device with a keyboard, press and hold ALT, then press L, then G, then L, then G.
If you have a touchscreen only device, do a Google search for instructions for your device - you should find a BlackBerry article that describes how to do it for your BlackBerry.
Does that answer the question?
