Today I got in the airplane and headed for Nantucket.   About 5 minutes into the flight I noticed I didn't have any xm weather.   ...which led to the discovery that the 510 didn't think there was a weather antenna connected.     ....nor was the serial data link connected.

I dismounted the 510 from it's cradle (which includes several columns of spring loaded connectors), rebooted, remounted.   Problem went away.
This is making me feel the connector in the mount is not working reliably.  Anyone else run into this?

Colyn