You can also run VEM via command without having the terminal active.
First press Alt+F4 on your keyboard. Next when the dash board appear with the headers "Run a command" enter "/home/cloud99/vuze/vuze".
Make sure to change "cloud99" with your original system name and change the directories if it is different. This work on Ubuntu 15.10 (Wily Werewolf). One drawback about this command is that it does not hide the Vuze icon.
Good luck!