Sorry to hear about your experiences. Never been to Alaska, so I can't comment on OCN there. It is extremely accurate and fast for me in the SE US as well as my travels to the NE. I too use an X30H and a BT GPS (BT-338). Oh well.
Did you open a ticket at OncourseNavigator.com and/or post in their forums?
You mention that you cannot return it. Have you tried? Depending on where you purchased it, I would think that you could. I have also read on these forums where another member received permission to sell his copy and the buyer got it licensed on his ppc.
Good luck.