My Garmin Communicator is also 4.0.1. I have checked the plugin for IE9 and Firefox 12, it shows enable. The option of sending map to Garmin just disappear this year. Last year was okay.

I am able to do a update for my Garmin set using Garmin Dashboard with Garmin Communicator 4.0.1 plugin.

Currently, only Map Quest has this option available. But Map Quest is unable to display Singapore Map correctly.

I using nuvi 2555LMT. Is there anything wrong with my laptop?