I have already tried reinstalling Java and making sure that it is enabled which it is. When I try to load something that uses Java, it just won't load however the Java icon will appear in my system tray like it should but the Java content just doesn't load. I have tried to load the Java content in a another browser like Safari but my browser just stalls and I have to close it. So what do I do?

My OS is Windows XP.(I switched back from Vista a while ago.)