Mr

When backing up contacts, the first contact is always checked... if you don't notice this and delete a number of contacts, you're going to delete the first one, by accident,if you're not careful.
Also, when selecting contacts, if you accidentally click the name of the contact instead of the small check box to the left, then any other contacts you may have checked will disappear.
After deleting some contacts, the program has frozen at 64% restored, and 97% restored, requiring a task manager end program to end and then restart the program.
There should be a way to save contacts with a specific, user defined name, so that subsequent saves can be differentiated.