A number, a ^, the walking man, and another number is the leJOS VM's way of indicating a Java exception has occurred. To find out what kind of exception has occurred, open a command line and navigate to the directory of the ".class" that is causing the problem. Type "lejos -verbose x" where x is the name of the class file. This command will cause lejos to display all of the classes that will download and download the class file. The exceptions and errors that can occur will show up at the top of the list.
When an exception occurs in leJOS, it is reported as the signature number first, a ^, the walking man, and the right-most digit of the class number. Use this rightmost digit on the screen to find out which errors or exceptions could have occurred.