Another RNC talking point "Kerry the unpopular"

The Democratic Convention: Feed, but Do Not Annoy, the Swing Voters
Where is all this "buzz" coming from about how democrats themselves don't think much of John Kerry - don't like him, too cold, lacks charm, etc. etc?
I hear Jeff Greenfield at the convention talking about this on CNN all the time, usually backdropped by a sea of Kerry/Edwards posters, and just following a speech where the mention of Kerry's name evoked roars of approval. But the media line is that Kerry is hard to like, and the non-thinking media won't be deflected from their mantra regardless of the facts.
I smell another RNC talking point here, positioning Bush as "the guy everyone likes" (NOT) against Kerry "the guy even the democrats don't like" (also NOT).