ibus 1.4.1 not working (Kubuntu 12.4.1 64bit)

[Yevheniy]

I can type Chinese in some programs e.g.: Goldendict or in MUON, but I CAN NOT type in Libreoffice, kate or Mozilla, where I need it the most.

How I installed:
- I followed the instructions here: http://code.google.com/p/ibus/wiki/Ubuntu (also installed "gnome-icon-theme")
- also tries to install through repositories;

More details:
- there is an icon in my System tray;
- in preferences in "Input Method" I set "Chinese-Pinyin";

P.S. I was already using ibus on kubuntu 12.04 64bit, but after reinstallation of the system I fail to install ibus properly

If somebody can help, please write step-by-step, as I am still a beginner;)
Thanks in advance!