Sync error after pst import

[dellock]

Hi,
I've imported a pst file using the wizard software, all went well and I can see my contacts in zimbra web mail.

But since I've made the import, Zimbra Desktop is going on filling my Error Reports with this error:

Product name: Zimbra Desktop
Product version: 0.91
Build ID: 1338
Release type: BETA
OS Platform: Mac OS X i386 10.5.5
Time of event: 2008-10-17 13:54:56
Error type: service.INVALID_REQUEST
Error summary: push item failed

Failure details:
----------------------------------------------------------------------------

<soap:Fault>
<soap:Code>
<soap:Value>soap:Sender</soap:Value>
</soap:Code>
<soap:Reason>
<soap:Text>invalid request: contact must have fields</soap:Text>
</soap:Reason>
<soapetail>
<Error xmlns="urn:zimbra">
<Code>service.INVALID_REQUEST</Code>
<Trace>btpool0-462:1224244512573:57dfe95a1d65d4ff</Trace>
</Error>
</soapetail>
</soap:Fault>

com.zimbra.common.soap.SoapFaultException: invalid request: contact must have fields
ExceptionId:btpool0-462:1224244512573:57dfe95a1d65d4ff
Code:service.INVALID_REQUEST
at com.zimbra.common.soap.Soap12Protocol.soapFault(So ap12Protocol.java:88)
at com.zimbra.common.soap.SoapTransport.extractBodyEl ement(SoapTransport.java:263)
at com.zimbra.common.soap.SoapTransport.parseSoapResp onse(SoapTransport.java:224)
at com.zimbra.common.soap.SoapHttpTransport.invoke(So apHttpTransport.java:261)
at com.zimbra.common.soap.SoapHttpTransport.invoke(So apHttpTransport.java:216)
at com.zimbra.common.soap.SoapTransport.invoke(SoapTr ansport.java:315)
at com.zimbra.common.soap.SoapTransport.invokeWithout Session(SoapTransport.java:302)
at com.zimbra.cs.mailbox.OfflineMailbox.sendRequest(O fflineMailbox.java:714)
at com.zimbra.cs.mailbox.OfflineMailbox.sendRequest(O fflineMailbox.java:690)
at com.zimbra.cs.mailbox.OfflineMailbox.sendRequest(O fflineMailbox.java:686)
at com.zimbra.cs.mailbox.OfflineMailbox.sendRequest(O fflineMailbox.java:682)
at com.zimbra.cs.mailbox.OfflineMailbox.sendRequest(O fflineMailbox.java:678)
at com.zimbra.cs.mailbox.PushChanges.sendRequest(Push Changes.java:571)
at com.zimbra.cs.mailbox.PushChanges.pushRequest(Push Changes.java:505)
at com.zimbra.cs.mailbox.PushChanges.syncContact(Push Changes.java:895)
at com.zimbra.cs.mailbox.PushChanges.sync(PushChanges .java:311)
at com.zimbra.cs.mailbox.PushChanges.sync(PushChanges .java:173)
at com.zimbra.cs.mailbox.MailboxSync.sync(MailboxSync .java:195)
at com.zimbra.cs.mailbox.OfflineMailbox.sync(OfflineM ailbox.java:116)
at com.zimbra.cs.mailbox.OfflineMailbox.syncOnTimer(O fflineMailbox.java:97)
at com.zimbra.cs.mailbox.DesktopMailbox$1.run(Desktop Mailbox.java:259)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)

----------------------------------------------------------------------------

How can I stop this error from filling up my error folders?
The error appears only in the desktop, not in the webmail.

thanks,
Luca.