Hi Glinkis, I'm sorry but I'm not working on the older version 2 anymore. V2 owners can get a discounted upgrade license for v3 though, it's the second link on the purchase page here: http://moi3d.com/purchase.htm

I think that v2 did work ok on older versions of Mavericks though, so if you have saved a disk image prior to updating the OS, if you reverted to that you could probably get working again with v2.

- Michael