I just added my yahoo account and it syncs everything but then a red circle with a white "x" appears next to my name and when I click on it this is what I get:

com.zimbra.common.service.ServiceException: system failure: Folder sync failed
ExceptionId:sync-mbox-kittengirl42@yahoo.com:1319755620802:e123f33625660 dfe
Code:service.FAILURE
at com.zimbra.common.service.ServiceException.FAILURE (ServiceException.java:248)
at com.zimbra.cs.datasource.imap.ImapSync.importData( ImapSync.java:168)
at com.zimbra.cs.datasource.imap.ImapSync.importData( ImapSync.java:135)
at com.zimbra.cs.offline.OfflineImport.importData(Off lineImport.java:100)
at com.zimbra.cs.offline.YMailImport.importData(YMail Import.java:54)
at com.zimbra.cs.datasource.DataSourceManager.importD ata(DataSourceManager.java:312)
at com.zimbra.cs.datasource.DataSourceManager.importD ata(DataSourceManager.java:276)
at com.zimbra.cs.mailbox.DataSourceMailbox.syncAllLoc alDataSources(DataSourceMailbox.java:442)
at com.zimbra.cs.mailbox.DataSourceMailbox.sync(DataS ourceMailbox.java:480)
at com.zimbra.cs.mailbox.DataSourceMailbox.syncOnTime r(DataSourceMailbox.java:409)
at com.zimbra.cs.mailbox.SyncMailbox$1.run(SyncMailbo x.java:257)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)
Caused by: com.zimbra.common.service.ServiceException: system failure: Synchronization of folder '/Wedding Stuff' failed
ExceptionId:sync-mbox-kittengirl42@yahoo.com:1319755620802:e123f33625660 dfe
Code:service.FAILURE
at com.zimbra.common.service.ServiceException.FAILURE (ServiceException.java:248)
at com.zimbra.cs.datasource.imap.ImapSync.syncFailed( ImapSync.java:384)
at com.zimbra.cs.datasource.imap.ImapSync.syncMessage s(ImapSync.java:325)
at com.zimbra.cs.datasource.imap.ImapSync.syncFolders (ImapSync.java:235)
at com.zimbra.cs.datasource.imap.ImapSync.importData( ImapSync.java:163)
... 11 more
Caused by: java.io.IOException: Connection is closed
at com.zimbra.cs.mailclient.imap.ImapConnection.sendR equest(ImapConnection.java:501)
at com.zimbra.cs.mailclient.imap.ImapRequest.send(Ima pRequest.java:95)
at com.zimbra.cs.mailclient.imap.ImapRequest.sendChec kStatus(ImapRequest.java:111)
at com.zimbra.cs.mailclient.imap.ImapConnection.doSel ectOrExamine(ImapConnection.java:208)
at com.zimbra.cs.mailclient.imap.ImapConnection.selec t(ImapConnection.java:195)
at com.zimbra.cs.datasource.imap.RemoteFolder.select( RemoteFolder.java:198)
at com.zimbra.cs.datasource.imap.ImapFolderSync.syncM essages(ImapFolderSync.java:269)
at com.zimbra.cs.datasource.imap.ImapSync.syncMessage s(ImapSync.java:322)

Not sure exactly what it means but I would really like this to be resolved.