I can confirm this problem too.
$ dpkg -l blender ii blender 2.45-4ubuntu1 Very fast and versatile 3D modeller/renderer
$ dpkg -l compiz ii compiz 1:0.7.4-0ubuntu6 OpenGL window and compositing manager
I can confirm this problem too.
$ dpkg -l blender
ii blender 2.45-4ubuntu1 Very fast and versatile 3D modeller/renderer
$ dpkg -l compiz
ii compiz 1:0.7.4-0ubuntu6 OpenGL window and compositing manager