Originally Posted by tsac
If it all worked before I would check to see if it is possible you have some type of corruption. Copy the contacts to a backup file and with only one or two new contacts see if it works.
Make sure your clean the contacts file, reboot and check to see there are none listed then add a couple.
If this works then it may be a contact ( one or more) that are corrupt or unreadable.
Ah! I hadn't thought of investigating that angle. Will do! THANKS for the suggestion.