What version of firmware? It would help try to recreate the problem immensely. Or even better, Go to the help menu, and Vems Sharing Center, and submit a report. Then it will give you a URL you can paste here to get some help, and we'll actually have some info on your setup.
Where is the burn button? Are you connected to an ECU? If not, the burn button isn't there, as it's not needed.