BizMock Recieve Adapter

I seem to have a strange behaviour with my BizMock recieve adapter.  After 10 minutes or so, I start to get errors like this

The receive location "xxx.BizMock" with URL "BizMock://xxx.BizMock" is shutting down. Details:"The Messaging Engine failed while notifying an adapter of its configuration. ".


I am going to have to dig into this one.  I know it must be something I am doing (Like all my failed tests) to cause this, because the Out-of-the-Box sample work and run just fine.