kxdocker crashes every time I try to start it

Binary package hint: kxdocker

I use the nVidia drivers, Beryl and kxdocker doesn't work, I get this error every time I try to start it. Also it doesn't seem to make a menu item in the gnome menu..

Ubuntu forums thread where others have the same problem: http://ubuntuforums.org/showthread.php?t=406011

$ kxdocker
X Error: BadDevice, invalid or uninitialized input device 169
  Major opcode: 147
  Minor opcode: 3
  Resource id: 0x0
Failed to open device
X Error: BadDevice, invalid or uninitialized input device 169
  Major opcode: 147
  Minor opcode: 3
  Resource id: 0x0
Failed to open device
kbuildsycoca running...
Reusing existing ksycoca
kio (KService*): WARNING: The desktop entry file /usr/share/applications/DefaultPlugins.desktop has Type=Link instead of "Application" or "Service"
kio (KService*): WARNING: Invalid Service : /usr/share/applications/DefaultPlugins.desktop
kio (KSycoca): ERROR: No database available!
KXDocker Will use Composite Extensions!
X Error: BadDevice, invalid or uninitialized input device 169
  Major opcode: 147
  Minor opcode: 3
  Resource id: 0x0
Failed to open device
X Error: BadDevice, invalid or uninitialized input device 169
  Major opcode: 147
  Minor opcode: 3
  Resource id: 0x0
Failed to open device
kxdocker: WARNING: Cannot find updated resources: you may need to update or reinstall KXDocker resources, checkout http://www.xiaprojects.com/www/prodotti/kxdocker/main.php?action=download#resources
kxdocker: WARNING: loading xml...
kxdocker: WARNING: Warning user kxdocker_conf.xml may be corrupt: loading last backup!
kxdocker: WARNING: Warning user, and backup configurations are corrupt! I'm going to load system kxdocker_conf.xml !!!
kxdocker: WARNING: Warning user, backup, system configurations are corrupt! please install right kxdocker_conf.xml
DCOP aborting call from 'anonymous-9376' to 'kxdocker'
ERROR: Communication problem with kxdocker, it probably crashed.