I installed my copy of ProshowGold via Crossover using a "bottle". The programme runs fast and smoothly (better than on my previous pC!) The only snag I hit was when I wanted to burn the show I produced to DVD disc. I kept getting the error message 'no installed driver' and that I had to 'be the administrator' (which I am). Having spoken via email to the very helpful Photodex I learnt YOU CAN! I followed their advice and did the following : ignore this error message and proceed BUT choose to make an ISO file, uncheck the video thumbnail box (otherwise it renders 5 second bit of video and then quits), it asks you where you wish to save the ISO file, choose and click OK and then sit back whilst ProShow renders to ISO. Once this is done Photodex recommended downloading a free DVD burning programme IMGburn but I could not find where it said it was compatible with Mac so I used Applications>Utilities >disc utility> found the ISO file and then just hit BURN. I am pleased to report it WORKS!!!!!!