Contacts Error - Need Help

[master_shake]

I used the original wm6 kitchen and have not had any problems til now.

I had used spb backup to do a backup of the contacts only, it backed them up and they restore, but today I tried to add a contact and it gives an error:
an unexpected error has occurred in this program

and it will not let me add any contacts, I can delete existing ones, and I can edit them, but no new ones


if the backup corrupted?
should I try to back them up in vista and restore?

any thoughts?