I had similar (but not identical) problems to start. Try what I outlined in step #3 above - it worked for me :
3) To make the current version work you need to disable Compatibility Mode via System > Options > Advanced Options > hilight Agendus WITHOUT clicking on it > BB key > Disable Compatibility Mode. A battery pull might not hurt.
I think the battery pull afterwards is the magic bullet so let's make it mandatory. If that doesn't work check the iambic software Community forums.