OK! I'm having the problem where I build an applet that utilizes newer java components, run it successfully in appletviewer, then post it on the web and when I access it I get "load: class xxx.class now found". I've looked all over the net and many people have this problem. So I took a tip from them and downloaded Sun's HTML converter 1.1.1 and converted my html file, but that didn't help, it just changed the erronious applet's background from a dull gray to a fancy white one with misinformed loading text on it. Here's also something interesting. Before I even heard of the HTML converter, I could run my applt fine in Netscape 6, but not in IE6. Yet on a machine next to me (on the same network) I could run the applet fine in IE6. Yet on a third machine, the applet gave the "class not found" error. Needless to say, I'm thoroughly confused. Somebody help me! Also, if anything about my description of my problem is confusing, don't hesitate to ask for a rephrasing there of.
Nick, You mentioned that you are using class files available only in a newer API. Which API version? Over in the Java in General (beginner) forum, we are having a conversation, called Exploring Java 2 Browser Support, in which we are trying to figure out the best solution to address this very problem.