Hello PeteMc. Did you find a fix for your issue yet? I just purchased the software and have, I believe the same issue. I've read and looked at a few youtube videos that show the plug in actually replacing or overlaying the GTN over the GNS 530/430. When I try this as described by others and attempt to change my view or move around the environment the panels stay where they are placed? The GTN operates as expected with navigation, flight plans, radios etc. but its a bit annoying. I should take a snapshot and add to make it clear, though what you describe sounds like my issue as well.