Where is the Apple ID located on my MacBook Pro?
I had to change my Apple ID. I changed it on the Apple web page, then changed it on my iCloud account. On my Mac the change is showing in iTunes, but not in System Preferences for iCloud. iTunes on my iPhone & iPad are still showing the old ID. I've checked the forums, checked everywhere I can think of on my devices, and even tried rebooting each device. What should I try next?