Comment 33 for bug 503041

I can confirm this bug too, also with an up-to-date Xorg version:

X.Org X Server 1.9.0
Release Date: 2010-08-20
X Protocol Version 11, Revision 0
Build Operating System: Linux 2.6.24-28-xen x86_64 Ubuntu
Current Operating System: Linux camera-gio 2.6.35-20-generic #29-Ubuntu SMP Fri Sep 3 14:55:28 UTC 2010 x86_64
Kernel command line: BOOT_IMAGE=/boot/vmlinuz-2.6.35-20-generic root=UUID=bdad7712-6266-463c-9d3a-b706722c39d8 ro quiet splash
Build Date: 02 September 2010 12:49:23PM
xorg-server 2:1.9.0+git20100902+server-1.9-branch.79ee78de-0ubuntu0sarvatt (For technical support please see http://www.ubuntu.com/support)
Current version of pixman: 0.19.3