Sigma Photo Pro and OSX Mountain Lion Problems.

I recently purchased a new computer with OSX Mountain Lion operating system, sadly I have not been able to use Sigma Photo Pro 5.3.2 on this machine. The program downloads and opens but as soon as I try to use review mode it crashes. I have tried SPP 5.2 through to SPP 5.3.2 and all versions do this.

I now believe there must be a software conflict between SPP and maybe another application on my computer as I have today successfully downloaded and used SPP 5.3.2 on my friends OSX Mountain Lion machine (in fact it was very fast and a pleasure to use, which didn't help my frustrations)

I have contacted Sigma UK and they are looking in to this (slowly) but I was wondering if anyone else has experienced a similar issue or any advice as to what maybe the problem.

Thanks