how do you undo application upgrade, how do you undo application upgrade
I upgraded an application only to find, when finished, the new version was not compatible with my operating system. Therefore, I can no longer use the application. Is there a way to back-date the operating system so the upgrade never happened? I know you can do it on PC's but unsure of Mac. And can I upgrade the Operating System without having to buy a newer computer?
Mac Pro, Mac OS X (10.5.8)