Error at login: The component was not found.

Hello, I sometimes get this exception 2-15 times when logging in to our WiseJ application.

The component was not found.

Stack trace:
at Wisej.Core.ResponseManager.GetDataStoreTarget(String id)
at Wisej.Core.ResponseManager.OnDataCount(Session session, Object message)
at Wisej.Core.ResponseManager.ProcessRequest(ServiceType service, Object message)

I have no idea what component is causing this error, or how to go about fixing it.  Can you give any suggestions?

Thanks,
Andrew

I should also add, this error is hit in the Application.ThreadException event.