I recently changed my Apple ID and am unable to sign out of my iCloud account or disable Find my iPod. The Apple ID shows with my correct new email address under iTunes & App Store, however under iCloud it still shows my old address. I am able to use the App Store fine, but am unable to sign out of iCloud or disable the Find feature as every time I enter the password (which is correct, as I've signed in on the web) it just registers as an incorrect login with the old shake...try again.