The error is
[code]
KCrash: Application 'kmobiletools_bin' crashing...
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 7
Minor opcode: 0
Resource id: 0x2a0006e
kmobiletools_bin: Fatal IO error: client killed
compunuts@sienna64:/usr/bin$
[/code]

I'm using KDE 3.5.2, kmobiletools latest snapshot http://xoomer.alice.it/rockman81/kmobiletools/kmobiletools-svn-2006-08-04.tar.bz2

Thanks.