I bought an upgrade for my Alpine navigation system that came factory installed in a 2005 Acura RL and when i put the DVD in the drive it just flickers on the screen..I get the NavLink icon that comes up but it just flickers in and out. The dvd looks fine and I also tried starting the main menu while the old disk was in and then puting in the new dvd and it just shuts down the main menu (by main menu i mean the screen that comes up when you hold a combination of the menu, map/guide and cancel for a few seconds) and flickers again...No clue what to do...thanks for any and all relevant advice..