toofunktastic

I decided to try out Nightmare 2.0 for the first time today just to do some simple growth rate editing. Everything loaded up fine, but when I try to save, even though the save pop-up comes up, nothing actually saves. I have the latest version of Java, but I'm on a Mac (OSX 10.7.5). I'm guessing my only solution is to just to do it on Windows instead? I have images of what it looks like on my computer if need be.