To test if installation worked did as suggested by going into my c:\jdk1.2.2\demo\java3d\HelloUniverse and entering java HelloUniverse . When I try to execute HelloUniverse I am getting the following error message: Exception in thread "main" java.lang.NoClassDefFoundError: HelloUniverse. This is what I've tried: First commented out my CLASSPATH in autoexec.bat (system is windows 98). This didn't work so I entered "c:\." in my classpath. Also entered "c:\jdk1.2.2;c:\jdk1.2.2\bin" in my PATH. Any suggestions appreciated!!!!!! =========================================================================== To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the message "signoff JAVA3D-INTEREST". For general help, send email to [EMAIL PROTECTED] and include in the body of the message "help".