Comment 20 for bug 737610

This is my error: Unity doesn't run in VirtualBox: compiz crashed with SIGABRT in __kernel_vsyscall() in Linux 11.04 Alpha 3 and my generated raport is this:

Unity doesn't start on VirtualBox (with guest additions) while it used to.
Classic Desktop with compiz works find.

What's odd is that in the guest window I see only the background, but in the preview window of VirtualBox I see the desktop and that nautilus is running (no panel or launcher though)

Keyboard and mouse events are received and I can blindly interact with the desktop.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: unity 3.6.6-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-7.35-generic 2.6.38
Uname: Linux 2.6.38-7-generic i686
Architecture: i386
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
Date: Fri Mar 18 16:02:57 2011
DistUpgraded: Fresh install
DistroCodename: natty
DistroVariant: ubuntu
DkmsStatus:
 virtualbox-ose-guest, 4.0.4, 2.6.38-7-generic, i686: installed
 virtualbox-ose-guest, 4.0.4, 2.6.38-5-generic, i686: installed
 virtualbox-ose-guest, 4.0.4, 2.6.38-4-generic, i686: installed
 virtualbox-ose-guest, 4.0.4, 2.6.38-6-generic, i686: installed
GraphicsCard: InnoTek Systemberatung GmbH VirtualBox Graphics Adapter [80ee:beef] (prog-if 00 [VGA controller])
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20110221)
InstallationMedia_: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20110221)
InstallationMedia__: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20110221)
Lsusb:
Bus 001 Device 002: ID 80ee:0021
 Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
MachineType: innotek GmbH VirtualBox
ProcEnviron:
 LANGUAGE=en_US:en
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-7-generic root=UUID=cc1af83d-2bce-4f2c-a4f9-926b07d071e8 ro quiet splash vt.handoff=7
ProcVersionSignature_: Ubuntu 2.6.38-7.35-generic 2.6.38
ProcVersionSignature__: Ubuntu 2.6.38-7.35-generic 2.6.38
Renderer: Software
SourcePackage: unity
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/01/2006
dmi.bios.vendor: innotek GmbH
dmi.bios.version: VirtualBox
dmi.modalias: dmi:bvninnotekGmbH:bvrVirtualBox:bd12/01/2006:svninnotekGmbH:pnVirtualBox:pvr1.2:
dmi.product.name: VirtualBox
dmi.product.version: 1.2
dmi.sys.vendor: innotek GmbH
version.compiz: compiz 1:0.9.4-0ubuntu7
version.libdrm2: libdrm2 2.4.23-1ubuntu3
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.1-0ubuntu3
version.xserver-xorg: xserver-xorg 1:7.6~3ubuntu11
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu5

What should I do...my video card is ASUS ATI Radeon AX550 Extreme.....