Three bugs to fix make multiple x screens worthwhile!

[danlea]

https://bugs.launchpad.net/ubuntu/+source/libxcb/+bug/278261
https://bugs.launchpad.net/ubuntu/+source/gnome-panel/+bug/128735
https://bugs.launchpad.net/ubuntu/+source/gnome-panel/+bug/282806

Then my dual monitor setup with two independent compiz cubes will be fantastic - it's so close!