My BMW Navigator VI is possessed

[Grumpy Goat]

I still have 3 old Garmin street pilot series model 2730 GPS units I use on my GSA bike and in the pickup. I purchased the first one in 2004 and later a couple of used ones when I found them for $75 or less. I have the same issues you are having within these. It is usually moisture getting under the screen which causes the issues you are experiencing. I just stick them in a bag of rice and put another one on the bike or in the truck letting the one dry out. I’ve replaced the screens on 2 of them for $25 each and the issue comes back over time.
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Hmmmm ... if this is the same issue then shame on Garmin for not making units that are truly waterproof even after all this time. Most mine ever gets wet is when I wash the bike.

Thanks for the tip! I will still report it to Garmin, of course. Nice picture, by the way.