ok, progress: no more blue screens. Yipppee. next issue: I have an 8/8/8 board and a 0/256/0 board. Starting out with the 8/8/8 board connected I get all events as expected. However, when the 0/256/0 board is also attached all events for the the 8/8/8 board stop. I have verified this with the test apps too. Problem has been reported to Chester. Anybody else seeing similar behavior?