Remoting Objects as Parameters

How do i pass a remoting object as a parameter to another remoting object?
I keep on recieving this exeption message "Because of security restrictions, the type
System.Runtime.Remoting.ObjRef cannot be accessed."

The following is the simplified code at the client app:

Private function InsertRecord() As Long

Dim oBAL As New BAL 'Remoting object
Dim obj As New Entity 'Another remoting object; a custom entity object

Dim lReturnValue As Long



lReturnValue = oBAL.AddRecord(obj) 'the part where i recieved the error

Return lReturnValue


End Function



The following is code at the remoting object (BAL)

Private function AddRecord(Byval obj As Entity) As Long

Dim oDAL As New DAL
Dim lReturnValue As Long


'continue process


Return lReturnValue

End Function