Okay, I had some trouble with this at first too...I had Kaffe installed on my system as the default Java program and Kaffe totally choked on Phex. I'm just going to assume that when you type in "java" at the command line, it goes to the Sun version. type in "java -tar phex.tar". I made a link to it on my desktop...my link runs this: "/usr/java/jdk1.3.0_02/bin/java -jar /home/kris/phex.jar" which is basically the same thing with the paths tossed in there.