Cannot use Return in this sequence

Hi,

I am trying to mock a call to a private method on an instance of a class so I can control it's return value. I am using VS2005, so using private accessors and keep getting the same error:

Cannot use Return in this sequence, there must be a mocked statement first

My code is:

EditorFacade target = new EditorFacade();
EditorFacadeAccessor accessor = new EditorFacadeAccessor(target);

string[] assemblyNames = new string[] { "John" };

using (RecordExpectations recorder = RecorderManager.StartRecording())
{
accessor.GetAssemblyNames();
recorder.Return(assemblyNames);
}

It is the call to Return that throws the exception. I have tried a few variations on the theme, but simply cannot get it working.

I am using 3.7.1 on Vista.

Thanks

Colin