I used nave coder(un-regestered) yesterday using the rolf resler interface just to check everythings working and it was. I scaned the audio/nav systems and all modules and it came up with all the revelent info, so i regested it and when out today to code my tv, clock and voice control, but it could not find any thing, i scaned on all the com ports around 30 of them but it did not find anythig. Is they any way of checking the interface as i may of damaged it or maybe i started nav coder before i pluged the interface cable in so the revelent com port was not there. has any one had this problem and is there any way of knowing what com port to scan under. would it be the sameone that shows up in my devises.