sync problem

When i sync my iphone5 it is connecting and start sync but after some time show to me that the computer is not an authorize and i authrize it but the same problem come agan to ask me for authrize and doing again but after that it comes again when i sync i donot know how to sync my mobile

and the seconf this i have apple id and i change it

and i delete the password from the old one but now in one of my mobile it shows me that id and i cannot delete and i cannot enter in it bec the password was changed so what can i do help me please

<Emails Edited By Host>