I am fairly new to Macs. Bought a early 2008 MacPro. Here is my question. What is the possibility that the software that I bought for my Mac to work with Snow Leopard? I know that Disk Warrior had a long wait to get it working with Leopard. Is this a common problem from older versions of OSX like Tiger to Leopard? I am not talking about any specific program, just programs in general.