I get that error too. It doesn't seem to affect anything though, just minimize it and forget about it... As for looking at scenarios on the gallery, I believe I'm having the same problem. The java applet loads but then the window turns green or black and remains that way for quite some time. The java console window shows no issues though. Is this the problem you're having?

Is there a particular scenario that is not loading for the two of you, or is it just all of them? For example, I can play this scenario of DonaldDuck's just fine, can both of you?

to colorfulteen, When I compile it (similarly, I had similar happenings with jMonkey, although it doesn't mean anything on the actual stuff AFAIK). And to nccb, no, nothing works. All scenario don't load.

Oh, and to DonaldDuck, mine doesn't even yield a Java applet window, especially a WTF since java applets on other sites such as the colorado physics site works just fine.

limefortheworld, try clearing your Web browser cache ("Temporary internet files" in Internet Explorer speak) and Java cache (see http://www.java.com/en/download/help/plugin_cache.xml). Exit your browser before you clear the Java cache, and start it again afterwards.