1.308.1. RHBA-2011:0340: bug fix update
Updated xorg-x11-server packages that fix a bug are now available for Red Hat Enterprise Linux 6.
X.Org X11 is an open source implementation of the X Window System. It provides the basic low level functionality upon which full fledged graphical user interfaces such as GNOME and KDE are designed.
All users of xorg-x11-server are advised to upgrade to these updated packages, which resolve this issue.