Problems with GPS on J2ME

Question

Hi Guys, I'll try to be very specific here, well, In my application, I have a Destination coordinate (x,y) and my actual coordinate... and I update my coordinate each and every 5 seconds as shown

locationProvider.setLocationListener(this, 5, 5, 5);

Anyway, I draw an Arrow pointing to the destination coordinate (using the angle "vector to point" method) and I show the distance of my coordinate to the destination coordinate

The problem is that my GPS has low Accuracy and my cellphone (Nokia E72) apparently does not accept Criteria(), Because of that my arrow goes crazy because every 5 second it shows me in another position even though I'm standing still. Is there any known method to solve this?