No I have not, this is a new phone. When I bought it I synced it to the computer that is now giving me this message.
I had an iphone 3GS that was synced to this computer, then I got the 4S and when I conected it for the first time I was able to transfer all the stuff that I had in my old Iphone 3GS, the only thing I was not able to get was music but didn't do anything about it then.
When I conected my phone to try to add some music to it it's when I got that message. So I have not synced my Iphone 4S with another computer or another Itunes library.
If I choose to sync it anyway it would erease what is on the phone now, but since this phone was backed up already, Would I be able to get all the stuff back on it?
I thank you in advance for your help.