virtualbox in 12.04 refuses to install a guest

[Milton]

Hi,
I run 12.04 Unity 2D with Orca 3,4,2. When I start
virtualbox in a
terminal the following message was shown:
Qt WARNING: WARNING Qt AtSpiAdaptor: Could
not find accessible on path:
"/org/a11y/atspi/accessible/152268072"
Qt WARNING: AtSpiAdaptor::notifyAboutDestruction:
Could not find parent
for  QWidget(0x92e7db0) 0
milton at piano:~$
Is ther something missing for virtualbox to work properly?
Thank you in
advance.
Milton
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