i have the same problem.
i'm using the sun jdk 1.3.1 se (build 1.3.1-b24) under suse linux 7.1 with gnome/enlightenment.

limewire 1.7 is working fine and on the first run of 1.8 the setup wizard is working too. after answering all the questions, i get
./runlime.sh: line 11: 3079 Segmentation fault java -classpath . RunLime
when starting runlime.sh in the console.

hoping for a fix soon.