Frozen program

I have Samsung E250 and Navigami on it. It launches it self properly and work for about 10 second. Just enough to establish connection with BT GPS and show my position on the screen. Signal meter is full and the little icon for transmitting is blinking for this 10 sec. Then all freezes. No icon, no change in signal no moving. And that is same in all modes(trackin, non tracking, smoothing, non smoothing...). What is the problem? Java?

Thanks

samsung

not easy to say. I'v tested it on D900 with problems, but it worked longer than 10s. I think, it can be samsungs' java. Or low memory. Is it working longer without BT connection to GPS?