I have virtualmachine running Virtualbox 4.1.12.
Started it using:
vboxmanage startvm Ubuntu --type headless
which works just fine, but I can't find if it is possible, and if yes - how, to enable VNC for such, already running, machine.
If it's not possible - is it somehow possible when using vboxmanage to start machine (as opposed to vboxheadless) ? I prefer vboxmanage because it automaticaly, and cleanly detaches from terminal.