I'm trying to use Exchange Migration Wizard (V7.1.2) to move mailboxes from Exchange 2003 to Zimbra 7.1.2 NE. Following is the log file:

12-01-2012 12:18:09 [8552]: ZCSExchangeMigrationWizard-7.1.2.104 Version 7.1
12-01-2012 12:18:09 [8552]: Outlook.Application\CurVer: 12
12-01-2012 12:18:19 [8552]: RPC Error:- WinHttpSendRequest failed. The RPC request is logged as C:\Users\tkenney\AppData\Local\Temp\ZCSExchangeMig rationWizard-7.1.2.104\1-RPCErrorRequest.xml
12-01-2012 12:18:19 [8552]: RPC Error: One or more errors were found in the Secure Sockets Layer (SSL) certificate sent by the server.
Continue with the invalid certificate?
12-01-2012 12:18:21 [8552]: strSvrVersion: 7.1.2_GA_3268 20110804120420 20110804-1208 NETWORK
12-01-2012 12:18:21 [8552]: dSvrMajorVer: 7.100000
12-01-2012 12:18:21 [8552]: dProdMajorVersion: 7.100000
12-01-2012 12:18:21 [8552]: wProdMinorVersion: 104
12-01-2012 12:18:21 [8552]: Server Minor: 2
12-01-2012 12:18:28 [8552]: Picking Objects
12-01-2012 12:18:30 [8552]: exStore: /o=MyDomain/ou=First Administrative Group/cn=Recipients/cn=zmtest
12-01-2012 12:18:30 [8552]: Foreignprinciple: ad:zmtest
12-01-2012 12:18:40 [8552]: Clearing internal progress log entries
12-01-2012 12:18:40 [8552]: Entries cleared
12-01-2012 12:18:43 [8552]: ------------------Import Options--------------------------
12-01-2012 12:18:43 [8552]: Import Mails : Yes
12-01-2012 12:18:43 [8552]: Import Contacts : Yes
12-01-2012 12:18:43 [8552]: Import Calendar Items: Yes
12-01-2012 12:18:43 [8552]: Import Tasks : Yes
12-01-2012 12:18:43 [8552]: Import JunkMail : Yes
12-01-2012 12:18:43 [8552]: Import Deleted Items : Yes
12-01-2012 12:18:43 [8552]: Import Sent Items : Yes
12-01-2012 12:18:43 [8552]: Import Rules : Yes
12-01-2012 12:18:43 [8552]: UseProgressLogs : Yes
12-01-2012 12:18:43 [8552]: Concurrency : 1
12-01-2012 12:18:43 [8552]: MessageLogging : Yes
12-01-2012 12:18:43 [8552]: ----------------------X-X-X-------------------------------
12-01-2012 12:18:46 [8552]: Creating / starting 1 worker threads
12-01-2012 12:18:46 [8552]: Dispatching work to worker threads
12-01-2012 12:18:46 [8552]: Notifying threads to exit
12-01-2012 12:18:46 [7436]: Worker thread started
12-01-2012 12:18:46 [7436]: Waiting for work
12-01-2012 12:18:46 [7436]: Work arrived.../o=MyDomain/ou=First Administrative Group/cn=Recipients/cn=zmtest zmtest@mydomain.com
12-01-2012 12:18:47 [7436]: Opening other users store
12-01-2012 12:18:47 [7436]: Logging on to zimbra server (192.168.2.130:7071)
12-01-2012 12:19:08 [7436]: RPC Error:- WinHttpSendRequest failed. The RPC request is logged as C:\Users\tkenney\AppData\Local\Temp\ZCSExchangeMig rationWizard-7.1.2.104\2-RPCErrorRequest.xml
12-01-2012 12:19:08 [7436]: Deleting mapi folder list
12-01-2012 12:19:08 [7436]: **Error**:RPC Error: The request has timed out.

12-01-2012 12:19:08 [7436]: Waiting for work
12-01-2012 12:19:08 [7436]: Worker thread exiting
12-01-2012 12:19:10 [8552]: Total errors and warnings in migration:
12-01-2012 12:19:10 [8552]: (MI): Number of Errors : 1
12-01-2012 12:19:10 [8552]: (MI): Number of Warnings : 0
I've read the other threads about EMW problems, but this seems a little different. Anyone have any clues?