I imagine the problem some people are having is related to the version of OS X they are running. Have they provided any system specs?
Like DirectX on Windows, OpenGL is the standard graphics API on the Mac, so comes pretty much as standard along with the OS and the graphics card drivers. Upgrading is simply a matter of downloading the latest graphics drivers. However, I have never had the need to manually download graphics driver and have simply used the Software Update feature of OS X to keep everything up to date (more the OS rather than the graphics drivers).
If they are trying to run it on a system that doesn't have a 3D card or OpenGL, then the app might just quit, although I would have thought that the user would have got an "unable to set graphics mode" error or such like.
To be honest, I've had little or no issues and am something of a Mac newbie myself, although I have been using them for a little over a year.
I would suggest getting as much of a system spec off the people having problems as possible and then posting them here. Maybe myself or someone more in the know will be able to provide a better likely cause. At least try and get the OS version and graphics card, which should all be available from the "About this Mac" option in Finder.
Like DirectX on Windows, OpenGL is the standard graphics API on the Mac, so comes pretty much as standard along with the OS and the graphics card drivers. Upgrading is simply a matter of downloading the latest graphics drivers. However, I have never had the need to manually download graphics driver and have simply used the Software Update feature of OS X to keep everything up to date (more the OS rather than the graphics drivers).
If they are trying to run it on a system that doesn't have a 3D card or OpenGL, then the app might just quit, although I would have thought that the user would have got an "unable to set graphics mode" error or such like.
To be honest, I've had little or no issues and am something of a Mac newbie myself, although I have been using them for a little over a year.
I would suggest getting as much of a system spec off the people having problems as possible and then posting them here. Maybe myself or someone more in the know will be able to provide a better likely cause. At least try and get the OS version and graphics card, which should all be available from the "About this Mac" option in Finder.