Hello aikibrown

I was having exactly the issue you describe but recently I have not. I have been testing lots of different combinations though, with/without bluetooth, with/without A-GPS, voice guidance on/off, with/without music playing.

Originally I was having the issue all the time, even after re-flashing the phone. I turned off the bluetooth to test and since then I have had no problems, even after turning the bluetooth back on. So I'm not sure what has happened to fix it.

If you do contact Nokia please let us know the outcome.