Exchange migration wizard 7.0 freezes

[sangamc]

I used to be able to migrate no problem with migration wizard 6. but since i upgraded the migration wizard 7 just sits at progress 0 of 100 (0%) errors=0 warnings=0

looked in the n2l.log and nothing unusual. there is an error

23-03-2011 09:43:06 [1000]: RPC Error:- WinHttpReceiveResponse failed. The RPC request is logged as C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp\ZCSExchangeMigr ationWizard-7.0.1.79\1-RPCErrorRequest.xml

but i got this error with migration wizard 6 and ignored it with no consequence (my zimbra server has 10 subdomains and not all have certs).


what could i be doing wrong?

Syetem specs: Windows server 2003/ exchange 2003/ outlook 2010