It was working a week or so ago.. Now it dies with the following stack trace. I did try re-installing

name=xxx;version=7.0;build=10706;release=BETA;os=M ac OS X i386 10.6.6;server=6.0.8



2011-02-18 15:06:30,425 INFO [Shutdown] [] log - Shutdown hook executing
2011-02-18 15:06:30,425 INFO [Shutdown] [] log - Graceful shutdown SelectChannelConnector@127.0.0.1:63870
2011-02-18 15:06:30,435 INFO [Shutdown] [] log - Graceful shutdown org.mortbay.jetty.webapp.WebAppContext@15f7107{/service,/Applications/Zimbra Desktop/jetty/webapps/service}
2011-02-18 15:06:30,435 INFO [Shutdown] [] log - Graceful shutdown org.mortbay.jetty.webapp.WebAppContext@1786b98{/zimbra,/Applications/Zimbra Desktop/jetty/webapps/zimbra}
2011-02-18 15:06:30,435 INFO [Shutdown] [] log - Graceful shutdown org.mortbay.jetty.webapp.WebAppContext@648938{/zimlet,/Applications/Zimbra Desktop/jetty/webapps/zimlet}
2011-02-18 15:06:30,467 ERROR [backup-timer] [] offline - Unable to backup accounts due to exception
com.zimbra.common.service.ServiceException: system failure: unable to stream response to disk
ExceptionId:backup-timer:1298070390467:6f2c6b4ae38170a4
Code:service.FAILURE
at com.zimbra.common.service.ServiceException.FAILURE (ServiceException.java:248)
at com.zimbra.cs.offline.backup.AccountBackupProducer .makeBackup(AccountBackupProducer.java:141)
at com.zimbra.cs.offline.backup.AccountBackupProducer .makeBackup(AccountBackupProducer.java:188)
at com.zimbra.cs.offline.backup.AccountBackupProducer .backupAccounts(AccountBackupProducer.java:211)
at com.zimbra.cs.offline.backup.AccountBackupProducer .backupAllAccounts(AccountBackupProducer.java:228)
at com.zimbra.cs.offline.backup.BackupTimer.run(Backu pTimer.java:115)
Caused by: java.io.IOException: chunked stream ended unexpectedly
at org.apache.commons.httpclient.ChunkedInputStream.g etChunkSizeFromInputStream(ChunkedInputStream.java :252)
at org.apache.commons.httpclient.ChunkedInputStream.n extChunk(ChunkedInputStream.java:221)
at org.apache.commons.httpclient.ChunkedInputStream.r ead(ChunkedInputStream.java:176)
at java.io.FilterInputStream.read(FilterInputStream.j ava:116)
at org.apache.commons.httpclient.AutoCloseInputStream .read(AutoCloseInputStream.java:108)
at java.io.FilterInputStream.read(FilterInputStream.j ava:90)
at org.apache.commons.httpclient.AutoCloseInputStream .read(AutoCloseInputStream.java:127)
at com.zimbra.common.util.FileUtil.copy(FileUtil.java :259)
at com.zimbra.cs.offline.backup.AccountBackupProducer .makeBackup(AccountBackupProducer.java:137)
... 4 more
2011-02-18 15:06:30,468 INFO [backup-timer] [] offline - Waiting until next backup at Fri Feb 25 15:06:06 PST 2011
2011-02-18 15:06:30,718 WARN [btpool0-2] [mid=6;] misc - Archive Formatter warning: com.zimbra.common.service.ServiceException: system failure: archive error
ExceptionId:btpool0-2:1298070390718:6f2c6b4ae38170a4
Code:service.FAILURE: org.mortbay.jetty.EofException