I have noticed the following error a few times when activating the MOSS Publishing Infrastructure feature on a newly created site collection:
Failed to activate feature ‘PublishingPrerequisites’ (ID: a392da98-270b-4e85-9769-04c0fde267aa) at scope ‘http://[url]‘.
Typically opening a command prompt (as administrator) and running an ‘iisreset /noforce’ will resolve this error.
