try set CLASSPATH with direcory of your classes I think it should work and then for example java jscheme.REPL graphics-test.scm good luck Łukasz
I have problems using my external classes with jscheme. jscheme dosen't see my own classes I use java -cp . -jar jscheme.jar and in REPL when I put (class "myclass") it writes $1 = #null myclasse exist in . current directory. I have try some other way but nothing was seen by jscheme so I wonder is it posible in jscheme to use external class (user defined). Please help Luke