That's the first time I've heard of this problem. Please check the Flex 2 Developer's Guide to see if there is a Modules chapter. If so, it's the 2.0.1 help. Another quick way to check is to look for Macintosh information in the Using Flex Builder help. And finally, if you click the LiveDocs link at the bottom of each page, does it go to the flex/2/xxx URL or flex/201?
Because it was an x.0.1 release we didn't really call out the version number. In retrospect, that was a mistake and we won't do it again. Regards, Randy Nielsen Flex Documentation Manager

