VirtualBox V4.1.20 on OpenInddiana 151a5 installe

VirtualBox V4.1.20 is released. ( see changelog ).

I've installed it on OpenIndiana 151a5 without problems. Reinstalled the
Extension-Pack and updated the GuestAdditions to the Windows XP SP3
VM.

After some restarts ( maybe because of resizing the Harddisk ) the system
restarted without problems.