Note that, unfortunately, many of the recent OSX fixes we have been developing in the VR Studio haven’t made it under the 1.3.0 tag, or even onto the 1.3 branch. It didn’t seem like a good idea to destabilize the Windows port while we were developing OSX.
By now, the CVS trunk is pretty stable for both Windows and OSX, but it has moved on a bit from the 1.3.0 version.
David