Navecore 9.400 and 9.401 are ending up to be quite buggy.
1) Any ticks to mark map corrections will disappear as soon as you connect the device to the computer. Be sure to make map corrections on the device before connecting.
2) On devices that offer a Quick menu preference (as there is on the XXL540, for example) the icon on the navigation screen will disappear when passing any safety cameras that replaces the Quick menu icon with the safety camera icon.
(See an extensive explanation with images here:
http://discussions.tomtom.com/t5/TomTom-XL-XXL-HOME/Houston-we-have-a-another-problem/td-p/170237
1) Any ticks to mark map corrections will disappear as soon as you connect the device to the computer. Be sure to make map corrections on the device before connecting.
2) On devices that offer a Quick menu preference (as there is on the XXL540, for example) the icon on the navigation screen will disappear when passing any safety cameras that replaces the Quick menu icon with the safety camera icon.
(See an extensive explanation with images here:
http://discussions.tomtom.com/t5/TomTom-XL-XXL-HOME/Houston-we-have-a-another-problem/td-p/170237