I'm having a problem when I activate a course. It takes a long time to load, maybe a couple of minutes. If I'm not right on the course it then says 'no navigable tracks found' and I have to start all over again and reactivate course. Sometimes I get this when I'm on the course too.
These two issues happen on every course but was never a problem before this month.
I have tried deleting all courses and music files though there wasn't much on there anyway, and a factory reset, but to no avail.
Is there anything else that I can try?