Fresh install on debian lenny broken?

[rototom]

Hello again,
on my vserver I try to install zimbra, the server has 2GB mem, so this should, shouldnt it?
I do the install routine without any errors, but after that, zimbra seems not to be started.
The webinterface is not reachable, and zmcontrol status displays the following:

root@mail:~# su - zimbra
zimbra@mail:~$ zmcontrol status
Host mail.kleinhitpass.de
	antispam                Running
	antivirus               Running
	ldap                    Running
	logger                  Running
	mailbox                 Stopped
		zmmailboxdctl is not running.
	mta                     Running
	snmp                    Running
	spell                   Running
	stats                   Running
zimbra@mail:~$ zmmailboxdctl start
Starting mailboxd...done.
zimbra@mail:~$ zmcontrol status
Host mail.kleinhitpass.de
	antispam                Running
	antivirus               Running
	ldap                    Running
	logger                  Running
	mailbox                 Stopped
		zmmailboxdctl is not running.
	mta                     Running
	snmp                    Running
	spell                   Running
	stats                   Running
zimbra@mail:~$

/var/log/zimbra.log is empty.
What can I do?
Thans a lot!