This is great news... Would any of the problems be Zbrush hangs in windows 7 64? I started using this fantastic piece of software when from version 4. Version 4 was stable to the 'T', but I have found that 4R2 had some trouble going over 10million faces, which I suspect is low for Zbrush.
None the less, I am not one to complain when the upgrade was given out of the goodness of your heart. And now this? Wow, I am in admiration of you guys. Good times ahead!
Thank you to all the pixologic staff.