VirtualBox: GUI-configuration couldn't be loaded; Callee RC: NS_ERROR_ABORT (0x80004004)

[Peter Ulrich Kruppa]

Hi,

whenever I try to start VirtualBox on my
	FreeBSD 8.0-RC1 amd64
I get an error message about GUI-configuration that couldn't be loaded
and 
	Callee RC: NS_ERROR_ABORT (0x80004004)
There has been a mail about this back in May, but I couldn't find an
answer (it was a very long thread).
Has this issue been solved?

Thanks for your answer

Uli.