OK, I managed to really update my system, now it works well. 
Many Thanks
D.

>----Messaggio originale----
>Da: slavek.banko@...
>Data: 05/11/2012 1.29
>A: <trinity-users@...>
>Ogg: Re: [trinity-users] HELP: main panel disappeared
>
>On Sunday 04 of November 2012 23:06:56 daniele.manghi@... wrote:
>> After upgrading oneiric,including KDE4, here is the error I get when I try
>> to run kicker :
>>
>>
>>
>> manghi@smallpapaya:~$ kicker
>>
>> kicker: symbol lookup error: /opt/trinity/lib/libkdeinit_kicker.so:
>> undefined symbol: _ZN9KListView9selectAllEb
>>
>> manghi@smallpapaya:~$ Is there a way to recover from this situation ?
>> Perhaps by re-installing what ?ThanksD.
>
>This indicates that you do not have a fully updated all Trinity packages. 
>Please try to:
>
>apt-get update && aptitude dist-upgrade
>
>Slavek
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