atokx3 seems not to work in Ubuntu12.04beta1 (amd64), although it works in 11.10 (amd64).
Is there a Ubuntu12.04 user in this thread? How about your case?

Is this related to the following error?

Cannot load module /usr/lib/gtk-2.0/immodules/im-iiim.so: /usr/lib/gtk-2.0/immodules/im-iiim.so: wrong ELF class: ELFCLASS32