Broken package, cannot install

[Fajar Priyanto]

Hello all,
On Dapper, I've got this error message when trying to install kerberos:
fajar at ubuntuzimbra:~$ sudo apt-get install krb5-user libkadm55
Reading package lists... Done
Building dependency tree... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
  krb5-user: Depends: libkadm55 (= 1.4.3-5) but 1.4.3-5ubuntu0.4 is to be 
installed
  libkadm55: Depends: libkrb53 (= 1.4.3-5ubuntu0.4) but 1.4.3-5 is to be 
installed
E: Broken packages

Any clue? Very confusing.
Thanks, really appreciate it.
-- 
Fajar Priyanto | Reg'd Linux User #327841 | Linux tutorial 
http://linux2.arinet.org
10:05am up 2:10, 2.6.18.2-34-default GNU/Linux 
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