PerversionTracker really needs to get a hold of this one. You folks are charging $30 for an application that serves as a directory of Mac OS error codes. That's an overpricing that's so bad it's insulting. The interface is ugly as sin -- hideous as heck. And in Mac applications, that's actually a big concern. The information appears to be greatly incomplete: a casual perusal of the "A"s indicated a lot of green-on-black (again, hideous choice) messages that basically said, "We don't know anything about this, but we're putting it in so we sound like we're completist." This is yet another example of Shareware so-called "developers" who try to figure that since we Mac users pay more for our hardware, we'll pay more for crap like this. Sadly, for the most part, they are right.