I had been using WordPress 3.0 for a few days now, and noticed that PostRatings was not working, so I decided to deactivate the plugin. I had already installed WP Polls to try out, and was working until WP 3.0 was released, then it wouldn't send any votes.
Decided to turn off most of the plugins, to see which one was conflicting. Once I turn on Lightbox 2, PostRatings and Polls stopped working. Any ideas on how to fix that? It's as if the query is not send or something... because both work with AJAX, I think. And it's at the moment when you click to vote, and the fade out and in to display the new results.