When we try and view Message Count, Message Volume, or Anti-Spam/Anti-Virus Activity for our server we get the following error:

Server error encountered
Message: system failure: java.lang.ArrayIndexOutOfBoundsException: 10 Error code: service.FAILURE Method: [unknown] Details:soap:Receiver
All our services seem to be running fine:
zimbra@zimbra:~$ zmcontrol status
Host zimbra.mydomain
antispam Running
antivirus Running
convertd Running
ldap Running
logger Running
mailbox Running
mta Running
snmp Running
spell Running
stats Running
zmconfigd Running
zimbra@zimbra:~$ zmcontrol -v
Release 8.0.3.GA.5664.UBUNTU10.64 UBUNTU10_64 NETWORK edition.
Any ideas what might cause this or where to look for more info?