I have the exact same problem. I have to stop for about every zone as the GPS is off. I use to move the phone back and forth, that makes it move right a bit faster. Closing it does not help. I also check with google which can be correct even Turf is not. But I have not had it closed for days.... Going on vacation on Saturday so might be able to keep it closed for a few days. I am in Turku, Finland, and assume Huxflux is in Sweden. My phone is only about 7 months old so it should not be broken yet. ;-) Happy for any suggestions that might help.