k3b startup failed in Ubuntu

This is another bad side effect after an update in Ubuntu Gutsy.
For some reason k3b failed to startup and it was working right before the packages update! I kept on getting the following error:

X Error: BadDevice, invalid or uninitialized input device 159
Major opcode: 148
Minor opcode: 3
Resource id: 0×0
Failed to open device
X Error: BadDevice, invalid or uninitialized input device 159
Major opcode: 148
Minor opcode: 3
Resource id: 0×0
Failed to open device
kdecore (KLocale): WARNING: Definition of PluralForm is none of NoPlural/TwoForms/French/OneTwoRest/Russian/Polish/ Slovenian/Lithuanian/Czech/Slovak/Arabic/Balcan/Ma cedonian/Gaeilge/Maltese: Definition of PluralForm - to be set by the translator of kdelibs.po

I have tried to reinstall k3b, kdelibs and etc. Nothing helped, luckliy I found the following threads:

http://ubuntuforums.org/showthread.php?p=4409467 http://ubuntuforums.org/showthread.php?t=695073&page=2
The solution was:
sudo apt-get remove language-pack-kde-en

It seems language-pack-kde-en cause some conflict during k3b startup when your ubuntu has other languages installed.