My BMW Navigator VI is possessed

[runnerhiker]

Exactly. They've already responded with a query as to whether there were extreme temps (there weren't) or altitude changes (again, there weren't).

Do you know anymore about the altitude change question? I have a Nav VI and live in Colorado, 3000 feet elevation change is common for me, sometimes 5000 feet. 30 deg temp swing going to the mountains also happens at times.

I've never had any problems with mine, knock on wood!