Okay after carefully following the instructions for upgrading from FMS 12 to FMS 13, which includes uninstalling FMS 12, I find out that FMS 13 isn't supported on OS X 10.9. Okay I've wasted some time there, my fault maybe for not reading the fine print. However, now I'm trying to reinstall FMS 12 and the installer keeps crashing (not responding) both during my efforts to install and to uninstall again so I can start over.
I would appreciate any suggestions. Any options besides reinstalling the entire OS?