what settings for java on konqueror?

Does anyone know what config/settings beyond what I have done (below) are necessary to get java to work in konqueror? I have installed/uninstalled the SuSE rpm for jdk1.1.8, Kaffe1.0.6, Blackdown1.3.1. I currently have the SuSE rpm for java2(1.3.0). In each case, I ran SuSEconfig, insured java executable was in my PATH, and set konqueror to absolute path to java. But all I get is a perpetual gray box with "Loading Applet" displayed. Thanks for any pointers or experiences you may share.