Unbuntu ATI proprietary fglrx driver logout/shutdown problem

I was annoyed to hell with this problem. It seems the problem was with atieventsd. Removing it from startup solves the problem:

update-rc.d -f atieventsd remove

atieventsd:: The ATI External Events Daemon atieventsd is a user-level application that monitors various system events such as ACPI or hotplug, then notifies the driver via the X extensions interface that the event has occurred.