It is annoying that I have to keep killing netscape under kde. I used java from a site and a lot of the times, the netscape went blank and hang there. As for the enlightment, the java function simply doesn't work.
This is a Netscape problem - since we don't have access to the source, we can't debug it efficiently. Looking at the signal interaction, Netscape does send SIGBUSes around when it crashes, so possibly KDE's behavior is correct due to Netscape bugs. Guess the only fix is to wait for Mozilla or Konqueror - sorry. Updating to Netscape 4.73 may or may not fix the problem (It seems to be slightly more stable, but still buggy).