Downloaded this a while back and thought I'd try it tonight. When I opened it, it turned the screen black, and then nothing... SO... I Command-Tabbed to get back to Finder and Force Quit the application. went to Get Info on it and found it was described as for a PowerPC, not my MacPro Quad Core. So, I thought I must have made a mistake when I downloaded it weeks ago, so went and got a fresh copy that it claimed was for Intel machines. Opened it - and the result was exactly the same. Obviously others are using it, but it seems from what they have said it is pretty buggy. So, Program Designer, why does either version fail to open on a perfectly good top of the range Intel machine that generally has very few problems?