Greg,
This problem shows up in CS6 Indesign, Illustrator, Photoshop and Flash but not in Dreamweaver. It is also in MS Word, Excel and Powerpoint. I have to admit that I use a Magic Mouse but this should not be an excuse, nor do I see this as an Apple Magic Mouse problem. If as you say these applications were fully tested on all the equipment for a given platform this issue should have been found and fixed by now!