No easy answers unfortunately. Two similar discussions:
http://www.gnutellaforums.com/genera...evel-high.html
http://www.gnutellaforums.com/new-fe...-x-10-5-a.html
It's my guess LW 5 for OSX is not working that well with apple's java. Apple prefer to work on their own Java rather than let the main java company create it for them. Unlike windows & linux. Whether to blame java or LW is disputable.