求助：kde的问题

进不了kde了，每次都报DCOPSERVER有错，用strace查看了一下，不知道该怎么半，大家帮忙看看！
#strace -f -F -o ~/dcop-strace.txt dcopserver
Process 3719 attached
Process 3720 attached
Process 3719 detached
Process 3721 attached
Process 3720 suspended
sh: line 1: iceauth: command not found
Process 3720 resumed
Process 3721 detached
DCOPClient::attachInternal. Attach failed Authentication Rejected, reason : None of the authentication protocols specified are supported and host-based authentication failed
ICE Connection rejected!
DCOPClient::attachInternal. Attach failed Authentication Rejected, reason : None of the authentication protocols specified are supported and host-based authentication failed
DCOPServer self-test failed.
Process 3722 attached
Process 3718 suspended
ICE Connection rejected!
Process 3723 attached
Process 3722 suspended
sh: line 1: iceauth: command not found
Process 3722 resumed
Process 3723 detached
Process 3718 resumed
Process 3722 detached
Process 3724 attached
Process 3720 suspended
Process 3720 resumed
Process 3724 detached
Process 3720 detached