I have just bought an Alpine Sat Nav system from a mate and i fitted it yesterday. It includes the same model (NVE-N077PS) as you are talking about on here and has exactly the same fault as you are reporting. He hadnt used the kit for 3 years and at first i thought it was a faulty unit, but after googling and finding this forum, i think i have found the answer. Just about to ring my local Alpine Dealer to see if they have the required update disc in stock.
Has anyone had the disc loaded yet? Is it just a one off thing, just put the disc in, load it, take it out and then put your map disc back in?
Luke Cheater, May 2008