ADFS MP - shows websites as Critical when they are fine

Hi,

Just installed the ADFS MP on to SCOM 2012 R2, but cannot get the Websites to turn Green, even though the Websites  are running fine. ADFS servers are 2008R2.

Have applied all the legacy IIS6 extras to the Management Server (bit dodgy??)

http://social.technet.microsoft.com/Forums/systemcenter/en-US/8efa04d0-54f9-4c1b-9009-85237714a5a6/scom-alert-ad-fs-application-pool-adfsapppool-is-stopped-in-the-iis-manager?forum=operationsmanagermgmtpacks

Disabled TCPIP6 on the MS and on the clients. http://scug.be/christopher/2012/03/07/opsmgr-scom-adfs-2-0-mp-discovery-issue/

http://technet.microsoft.com/en-us/library/ff730220.aspx

Rebooted....Stopped/started Health Services ------ nothing gets these critters to turn green.

I do see the following Warning in the Opsmgr Event log and am not sure if this is causing the problem. Nor can I work out how to fix it:

ActiveDirectoryFederationServices : IIS VDir check PowerShell monitoring script failed. You cannot call a method on a null-valued expression. Event ID 901

Any ideas of what can be checked further?

Thx,

John Bradshaw