[ubuntu] VirtualBox doesn't fill screen when I try to integrate it with my desktop

After I updated my Ubuntu to 13.04 I noticed that VirtualBox looks strange (see the attachments below) when I try to integrate it with desktop. As well as the VB menu doesn't work. I had no such problem before. Does anyone know how to fix it?

Host machine packages & config:
VirtualBox 4.2.12 r84980
nvidia-current 304.88
GPU GeForce 6150SE nForce 430
Last Xorg taken from xorg-edgers PPA repo:
X.Org X Server 1.13.4
Release Date: 2013-04-17
X Protocol Version 11, Revision 0
Build Operating System: Linux 2.6.24-32-xen x86_64 Ubuntu
Current Operating System: Linux karimov-danil 3.8.0-25-generic #37-Ubuntu SMP Thu Jun 6 20:47:07 UTC 2013 x86_64
Kernel command line: BOOT_IMAGE=/boot/vmlinuz-3.8.0-25-generic root=UUID=b632398e-9f06-46f7-8fe9-3e61266354a6 ro quiet splash
Build Date: 08 May 2013 02:34:03PM
xorg-server 2:1.13.4~git20130508+server-1.13-branch.10c42f57-0ubuntu0ricotz~raring (For technical support please see http://www.ubuntu.com/support)
Current version of pixman: 0.28.2

Guest machine config:
Windows 7 Flowers Edition x86
VirtualBox Additions 4.2.12 r84980

Attached Images

• K3aRDG1VQNA.jpg (144.9 KB)
• UPI7M9wwBD4.jpg (42.7 KB)