Been trying over and over. Can't get it to work. Latest REW, OSX 10.8.4 (latest, MBP Retina Q3-2012), Java 7.25 (latest). The program won't actually boot.
Splash screen reaches "generating toolbar", then the following error occurs:
Exception during startup
I just had an issue with my PC booting very slowly and thought I would share the answer, or at least the answer in my case.
I'm using a rather old motherboard by current standards (a Gigabyte P35-DS3L), but it's all I need for now.
I had some problems not long ago that gave me a fright...