Reselecting to trust a computer in OS7 for iPhone 4S
Just upgraded to iOS7. When I reconnected to sync, the trust/don't trust question came up. I inadvertently selected don't trust (distracted, and generally affirmative responses are to the right, not left.) Now I can't sync with my computer because it doesn't prompt me again when I reconnect, seems the setting has stuck. How do I change this setting?
iPhone 4S, iOS 7