After loading the new version basecamp will no longer find the 60Cx only the Orgeon450. Since mapsource doesn't work with the Orgeon basecamp was the only way to keep in sync. how can this be corrected?
Just tried BC 3.3.3 with my 76CSx (functionally similar to a 60Cx) and it was recognized just fine.
That said the Garmin USB drivers had been "lost" by Windows since the last time I plugged it in so I had to reinstall them. Are you sure the 60Cx is being recognized by Windows?