http://www.gnutellaforums.com/window...tml#post348148
It seems no LimeWire version 5 including Pirate Edition will launch directly under Java 7 (1.7). This was obviously some kind of oversight error by the LW 5 developers. Which was also not realised when LPE was created. An oversight. Funnily, LW 4 versions are unaffected by this and will run happily under Java 7.
A workaround fix for this issue was posted by pongo1 "
here".
At this point I do not know if this affects Linux users. Nor do I know if it will affect MacOSX users since OSX is still using Java 6 at this present time.