I've had a Garmin 800 for over a year - used it lots but in general avoided using it in the rain. I bought one of the silicon cases for it last year after it got wet on a ride and misted up on the screen, but I was out at the weekend and caught in a 30 min downpour. It basically stopped working for 2 days until I'd dried it out by leaving on a radiator - it would turn on and the screen would work (albeit with lots of condensation on it), but none of the buttons would work - including the on/off button, so I couldn't turn it off again!
Is this normal? Should I send it back to Garmin? Any ideas if they'd help given it's over 12 months old?