If you read my detailed review on Photoshop CS3 running over at DV.com, you would have heard my only complaint about the public beta is that cursors don't work well on Intel-based Macs. Apparently enough other people were bothered too.
John Nack, Photoshop Product Manager, has opened up access to a new build (version) through his blog. You can find out how to access the new version here. For you early adopters.... I hope you enjoy. By the way, the new version has more to it than that... so you may want to check it out.