Check out the system requirements this game doesn't run on most graphics cards annoyingly. I've got a 24" iMac 2.8GHz which I thought put me nicely over the requirements but even in the lowest possible graphics settings (800X600) and no detail whatsoever this game is still completely un-useable. Crashes are routine and construction is far to slow. The graphics actually render quite well but the second you try to build anything the whole thing just freezes up. Shame because it looks like quite a good game otherwise. The gameplay of RCT3 is a slight improvement on the first version but not by much, the graphics, however, are a massive improvement, proper 3D rendering with a choice of viewing modes. Just a shame it doesn't work, look around and read the reviews for some people on older PPC macs the game runs fine but for intel macs like mine it just doesn't work at all. Damned shame, i'll have to dig out my old copy of RCT1 and 10 year old PC for now.