LimeWire suddenly doesn't run anymore...
 

I've been using the latest version of LimeWire for Mac OSX for a while now. It's a slow starting program, but it used to work fine...
Used, because I can't seem to get it started. When I start I just get a blank popup screen with just a 'OK' button. When I press OK the whole thing quits.
I have tried re-installing LimeWire but this doesn't help.
I have found a document in the LimeWire folder (err.txt) wich says:
"[LaunchRunner Error] The main class "com.zerog.lax.LAX" could not be found."
I cannot find this document on my Mac...

How do I get it working again?