You probably need to set the JVM's CLASSPATH variable to point to both the directory you are in (.), and to the main class directory for whereever you installed the JVM itself. This will allow the application launcher in the JVM to first locate your application class files, then any supporting ones the application uses. However, I was pretty sure that the default path is used by the JVM if no CLASSPATH variable is found in it's startup environment, which points to the current directory. I would check the CLASSPATH setting you have - there is a good FAQ on the SUNSITE for JAVA installs.

One of the few remaining Mk1 owners... #00015