Hi all , new to this and very frustrated!! after 2 days of trying to transfer my custom poi's from my one xl live to a go 720 I've had to give up and ask you!! I've tried copying the files across in explorer and i get the message "cyclic redundancy check unable to move files" thats after reading as much about it on this forum as i can! I've also tried just entering them all manually from the device its self (add poi category etc) but it wont let me! I can enter the category on tom tom home but then it doesnt show on the unit!!!! The map etc is on a 4GB card and the device has everything else, obviously the map is too big for the device (the new western europe and russia) and it wont let me copy the app etc to the card!!! HELP !! i need this for work !!