hi..i am new to using EJB too. I was able to use the tutorial successfully using JBoss 3.0.8, J2sdk1.4.1 and J2sdkee1.3 . I was able to sucessfully deploy the beans but not able to have the client access them. so try using JBoss 3.0.8 which i guess is preety stable and has been arnd. for a while. let me know if it works. Also jus' make sure to put in ur environment details and exactly when u get the error.