in iTunes preferences uncheck "check for updates automatically"
I have this problem too. AppleCare people were not helpful at all over the phone. My only solution has been to downgrade to 1.1.2.
I'm subscribed to half a dozen vodcasts that update daily... 1.1.3 doesn't do much for me anyway.do you sync your ipod so much that you had to downgrade it?
i only see this as a mere annoyance with the exception of podcast subscribers... in which it would be total hell.