I get the following error while working with Gmail and windows 7. usually occurs when trying to delete messages. I've removed my email address from the report.

Code:
method:	GetMsgRequest
msg:	system failure: MessagingException while creating MimeMessage for item 6361
code:	service.FAILURE
detail:	soap:Receiver
trace:	com.zimbra.common.service.ServiceException: system failure: MessagingException while creating MimeMessage for item 6361 ExceptionId:btpool0-32:1268040331202:96b9e83153fb4ebf Code:service.FAILURE at com.zimbra.common.service.ServiceException.FAILURE(ServiceException.java:248) at com.zimbra.cs.mailbox.MessageCache.getMimeMessage(MessageCache.java:198) at com.zimbra.cs.mailbox.Message.getMimeMessage(Message.java:334) at com.zimbra.cs.mailbox.Message.getMimeMessage(Message.java:315) at com.zimbra.cs.service.mail.ToXML.encodeMessageAsMP(ToXML.java:785) at com.zimbra.cs.service.mail.GetMsg.handle(GetMsg.java:102) at com.zimbra.soap.SoapEngine.dispatchRequest(SoapEngine.java:419) at com.zimbra.soap.SoapEngine.dispatch(SoapEngine.java:273) at com.zimbra.soap.SoapEngine.dispatch(SoapEngine.java:157) at com.zimbra.soap.SoapServlet.doWork(SoapServlet.java:291) at com.zimbra.soap.SoapServlet.doPost(SoapServlet.java:212) at javax.servlet.http.HttpServlet.service(HttpServlet.java:727) at com.zimbra.cs.servlet.ZimbraServlet.service(ZimbraServlet.java:181) at javax.servlet.http.HttpServlet.service(HttpServlet.java:820) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:390) at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418) at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230) at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) at org.mortbay.jetty.handler.rewrite.RewriteHandler.handle(RewriteHandler.java:230) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) at org.mortbay.jetty.Server.handle(Server.java:326) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:543) at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:939) at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:755) at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:218) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:405) at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409) at org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:451) Caused by: javax.mail.MessagingException: Error in input stream; nested exception is: java.io.IOException: renaming destination file C:\Users\Roi\AppData\Local\Zimbra\Zimbra Desktop\data\tmp\uncompressed\6fRUMUiNgXkHJqcybNVuJgUNTmY= already exists at javax.mail.internet.InternetHeaders.load(InternetHeaders.java:361) at javax.mail.internet.InternetHeaders.(InternetHeaders.java:310) at javax.mail.internet.MimeMessage.createInternetHeaders(MimeMessage.java:2107) at javax.mail.internet.MimeMessage.parse(MimeMessage.java:328) at javax.mail.internet.MimeMessage.(MimeMessage.java:205) at com.zimbra.cs.mime.Mime$FixedMimeMessage.(Mime.java:89) at com.zimbra.cs.mailbox.MessageCache.getMimeMessage(MessageCache.java:161) ... 31 more Caused by: java.io.IOException: renaming destination file C:\Users\Roi\AppData\Local\Zimbra\Zimbra Desktop\data\tmp\uncompressed\6fRUMUiNgXkHJqcybNVuJgUNTmY= already exists at com.zimbra.common.util.FileUtil.rename(FileUtil.java:502) at com.zimbra.cs.store.UncompressedFileCache.get(UncompressedFileCache.java:160) at com.zimbra.cs.store.FileDescriptorCache.getSharedFile(FileDescriptorCache.java:128) at com.zimbra.cs.store.FileDescriptorCache.read(FileDescriptorCache.java:88) at com.zimbra.cs.store.BlobInputStream.read(BlobInputStream.java:205) at com.sun.mail.util.LineInputStream.readLine(LineInputStream.java:84) at javax.mail.internet.InternetHeaders.load(InternetHeaders.java:338) ... 37 more
request:	

Body: {
  GetMsgRequest: {
    _jsns: "urn:zimbraMail",
    m: {
      html: 1,
      id: "44bf4db9-5ddf-47fe-bd45-a875605c95e5:6361",
      max: 100000,
      read: 1
     }
   }
 },
Header: {
  context: {
    _jsns: "urn:zimbra",
    account: {
      _content: "X@XXXXXXXX.XXX",
      by: "name"
     },
    authToken: "(removed)",
    notify: {
      seq: 22
     },
    session: {
      _content: 120,
      id: 120
     },
    userAgent: {
      name: "ZimbraWebClient - PRISM (Win)",
      version: "0.0"
     }
   }
 }