"Mike Spera" wrote in message
m...
Out of warranty (naturally) 396 has started acting flaky. It sits there
with the incorrect time and date and will not acquire satellites and start
up. Tried different antennas. Sometimes it will acquire after 30-40
minutes. Garmin's support database is useless. Are there any known
problems with this unit or is it time to get fleeced by their service arm?

I would suggest you take the antenna off and inspect the BNC connector
closely. If there are no obvious signs of damage, you probably have an
internal GPS problem and it will require sending it back to Garmin for
repairs.