Hi! I have found older libgtk2.0-0 package on my system, and downgraded to it. Also from libgtk2.0-0_2.8.9-2_i386.deb I have downgraded to libgtk2.0-0_2.6.10-2_i386.deb and the problem disappeared. So Im now pretty sure, that this is a problem of package libgtk2.0-0 version 2.8.9. Best regards, Khiraly