A new version of the firmware for the Virb is available through Garmin WebUpdater.
Changes from version 3.70 to version 3.80:
Fixed issue with slow boot-to-record times when using non-English languages.
Remember A/V cable preferences across power cycles.
Not a lot to get excited about in the change log but Garmin often quietly bundles in other fixes and I'm sure this one is no exception.