I have just purchased the X10 this week and its all up to date with software however I am having major issues with phonebook. Whenever I try and add contacts to my favourites in phonebook they only stay there for a few seconds before they vanish. When viewing call log if I try and save a number by adding a contact again this will do it for only a few seconds and then just delete the contact. Facebook links on the contacts aren't coming through and painfully slow to link all the address book up. Anyone else having this issue or know how to fix it? I have downloaded a different version of phonebook but I didn't think it looked as good as the default and want to make the normal one work. If anyone know's a better app then please let me know.