I can't purchase OS X Server
I'm trying to purchase OS X Server for my Mac Pro from the App Store and it won't let me. It says I already have OS X Server isntalled on this computer. And it's right, I do.... but when I try to run my copy of OS X Server it says I cannot run this version of Server (1.5.0) on this version of OS X (10.8.2). That's why I wanted to buy the latest version! What can I do besides wiping my hard drive?
Mac Pro (2009 Quad), Mac OS X (10.5.7)