I installed Zimbra 6.0.1 on Ubuntu 8.04 LTS. The mail sending and receiving are working correctly. But the server status page show stopped all services while the zmcontrol status output is the following:

Host mail.dev.foo.bar
antispam Running
antivirus Running
convertd Running
ldap Running
logger Running
mailbox Running
mta Running
snmp Running
spell Running
stats Running

What's wrong?