Innovator 12 - error on login - missing methodType

Greetings

Unable to go past the initial login with InnovatorServer v12, freshly installed.

1) Run http://localhost/InnovatorServer

2) Enter the default credentials (admin/innovator)

3) The page is blank

Looking at the traffic, here is the last request that I see:

Request Header: POST /InnovatorServer/Server/InnovatorServer.aspx HTTP/1.1

Request Body: 

<SOAP-ENV:Envelope xmlns:SOAP-ENV="">schemas.xmlsoap.org/.../" ><SOAP-ENV:Body><ApplyItem><Item type='Method' action='GetArasMainWindowInfo'><query_type>all</query_type></Item></ApplyItem></SOAP-ENV:Body></SOAP-ENV:Envelope>

Response Header: HTTP/1.1 200 OK

Response Body:

<SOAP-ENV:Envelope xmlns:SOAP-ENV="">schemas.xmlsoap.org/.../"><SOAP-ENV:Body><SOAP-ENV:Fault xmlns:af="">www.aras.com/.../faultcode><faultstring><![CDATA[Value cannot be null.
Parameter name: methodType]]></faultstring><detail><af:legacy_detail><![CDATA[Value cannot be null.
Parameter name: methodType]]></af:legacy_detail><af:exception message="Value cannot be null.&#xD;&#xA;Parameter name: methodType" type="System.ArgumentNullException" /></detail></SOAP-ENV:Fault></SOAP-ENV:Body></SOAP-ENV:Envelope>

You can see that the server expected a methodType, that was not sent as part of the request.

Please advise, thanks!