Hi there, this is not a tomcat-problem. Your browser comes with Microsoft Java VM which is not able to handle any stuff from the javax.swing package. Furthermore it does not recognize that it should use the Java Plugin since it is not enought just to install the plugin. You need to run the htmlconverter on your html-file. It converts the <applet>-tag into something like "<OBJECT classid="clsid:8AD9C840-044E-11D1-..." which actually causes IE5 to start the plugin. You can easily check this by enabling the java-console in your plugin-control-panel. If I am right, the java-console should pop up when showing the swing test applets from sun but it does not pop up, when showing your own html-page (close your browser before loading the pages, otherwise this effect doesn't work). In the latest plugin versions, you can also verify that the plugin is loaded by the little java guy showing up in your taskbar. You can retrieve the htmlconverter from java.sun.com. Up to Java version 1.3.0_01 it is available, separatly. In later versions, it is bundled togehter with the J2SDK. However, you can use the htmlconverter for 1.3.0, which will work with any later versions of the JRE and plugin, perfectly well. Hope this helps. regards Heiner > -----Ursprüngliche Nachricht----- > Von: Mihai Gheorghiu [mailto:[EMAIL PROTECTED]] > Gesendet am: Dienstag, 28. August 2001 18:23 > An: [EMAIL PROTECTED] > Betreff: Yet another newbie question > > I created (with NetBeans) a test applet that includes one > JLabel field. > I load it under Tomcat3.2.2 on RH7.0 and the browser (IE5.5) > on another > machine displays the html page with header "Applet HTML Page" > and footer > "Generated by NetBeans IDE", but I get only a grey rectangle > instead of the > actual applet. > I have Java plug-in installed in IE. I can open the Swing > test applets from > Sun's website. > Tomcat generates an error message in the terminal window it > was started > from: > 2001-08-28 12:12:00 - Ctx( /development ): 404 R( /development + > /javax/swing/JApplet.class + null) null > What should I do? > Thank you all. >