I'm running Mac OS 8.6. I can't open Lime wire at all.

Fatal Error dialogue box states:

"The properties file is missing an essential property: lax.main.class. Please make sure it exists in the properties file: /Macintosh HD/ Desktop folder"

I have not a clue what this could mean. I have reinstalled Limewire and reinstalled MRJ and rebuilt the desktop. Don't know much about Java so I don't know what else to try.