G:\Program Files (x86)\innotek VirtualBox>VBoxVRDP.exe  -startvm "Ubuntu vb1" -vrdpport 3390
VirtualBox VRDP Headless Interface 1.5.6
(C) 2005-2008 innotek GmbH
All rights reserved

[!] FAILED calling vrdpServer->put_Port(vrdpPort) at line 664!
[!] Primary RC  = E_ACCESSDENIED (0x80070005) - General access denied error
[!] Full error info present: true , basic error info present: true
[!] Result Code = E_ACCESSDENIED (0x80070005) - General access denied error
[!] Text        = The machine is not mutable (state is 2)
[!] Component   = Machine, Interface: IMachine, {31f7169f-14da-4c55-8cb6-a3665186e35e}
[!] Callee      = IVRDPServer, {ed9d31ae-867f-45fc-b727-6740084d1883}