Error in User Profile Notification

Hi,

I'm working on Profile Manager component of CSF 3.0. UserProfileNotification is not getting fired after user profile is updated. Following error is logged in the event log:

Timestamp: 11/7/2006 11:11:28 PM
Message: System.TypeInitializationException: The type initializer for 'Microsoft.ConnectedServices.Sdk.Eventing.DeliverySystem' threw an exception. ---> System.NullReferenceException: Object reference not set to an instance of an object.
at Microsoft.ConnectedServices.Sdk.Eventing.DeliverySystem..cctor()
--- End of inner exception stack trace ---
at Microsoft.ConnectedServices.Sdk.Eventing.DeliverySystem.RaiseEvent(EventContext context)
at Microsoft.ConnectedServices.Connector.ProfileManager.ProfileManagerWS.SendUpdateNotification(Object updateNotification)
Category: ProfileManager OperationalEvent
Priority: 3
EventId: 22000
Severity: Error
Title:Profile Manager
Machine: TestMachine
Application Domain: /LM/W3SVC/1/Root/ProfileManager30-1-128074140411386393
Process Id: 2172
Process Name: c:\windows\system32\inetsrv\w3wp.exe
Win32 Thread Id: 5544
Thread Name:
Extended Properties:

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

Could anyone help out regarding this

Rgs

Vasu