Quote Originally Posted by Deinonychus View Post
...I downloaded the latest maps and it worked fine once, now it doesn't lock on to satellites properly. It finds them and sometimes locks on to one or two after about 5 mins but never actually finds enough to actually work.
It's a bit confusing. If it worked fine in the past and you didn't touch other settings since then, then you have GPS antenna issues. Maybe it's misplaced and that's why you have poor reception. Pull out the unit and check the antenna. It shouldn't be to deep*under the armature.