Getting the dreaded insert appropriate disc error, ive tried downgrading, language change, different discs, reburned discs, etc. Has this error. cannot get past it, gps software shows as NG in service menu, try and force program (does show 1.5) but doesnt show percentage increase, shows for a split second then goes back to NG. hope you guys can help.... Ive got the correct remote so i can access the service menu easily.