Below the device, there are switches. You need to turn on SW1 and power cycle the unit in order to make it work with GoToMeeting.
This switch allows you to support multiple video formats over USB like 720p and 1080p. When this switch is off, 1080p is the only format supported and GoToMeeting/Webex/StarLeaf does not seem to support 1080p. GoToMeeting/Webex/StarLeaf* supports 720p. The SW1 in OFF position is the default mode. We did that in order to have maximum quality over video conferencing softwares.
* Using StarLeaf, you will need to have access to the switches below the device. Set SW1 to the ON position, power-cycle the unit and close / reopen StarLeaf software in order for changes to take effect.