VirtualBox: Unsupported version 11 of data unit 'vga'

Hi there,

I am running Windows 7 in VirtualBox 4.3.10_ubuntu r93012 on Kubuntu trusty 14.04.1 LTS.

Like always I shut down the VM with "save the machine state".

After restarting the progess bar goes to 100% but then an error message occurs saying:
"Für die virtuelle Maschine Windows7 konnte keine neue Sitzung eröffnet werden. (= For the VM Windows7 a new session couldn't be opened.")
Unsupported version 11 of data unit 'vga' (instance #0, pass 0xffffffff) (VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION).
Fehlercode:NS_ERROR_FAILURE (0x80004005)
Komponente:Console
Interface:IConsole {8ab7c520-2442-4b66-8d74-4ff1e195d2b6}lsb_release -a

Since I am a newbie to linux I always run all the updates that are recommended by Muon ;-)

I have not made any changes to VirtualBox or the settings of the VM itself.

Many thanks in advance!