In-Reply-To: <Pine.A41.4.58.0406282056370.170138@xxxxxxxxxxxxxxxxxxxxxxx> I can click cancel on assertion error window and my broswer does not crash. FireFox 0.8 Windows XP Pro SP1 Java Version 1.4.2_04 (build 1.4.2_04-b05) >this is a Java One special: > >Three months ago I informed Sun Microsystems >about an applet alerting with a native win32 assertion >(Expression: offset < fFileSize [...] >[How] does it crash on other platforms ? Please mail me