Hi, Well I have read everything I could get my eyes on and I still cannot solve the problem: not running Here is the output from prompt>java source.java or prompt>java demo SIGSEGV 11* segment violation stackbase=(nil), stackpointer=(nil) Full thread dump: NULL (TID:0x04066d0a8, sys_thread_t:0x819ee10, state:R) prio=5Killed My stuff: * Red Hat 5.0 w/ all (lib, devel, profile, debug) glib 2.0.7-19 upgrade and ld -1.9.5 upgrade * jkd1.1.3: installed jdk, jdk-demo and jkk-docs, OK * env shows JAVA_HOME set and PATH set OK . * try w/ CLASSPATH unset or =.:$JAVA_HOME (same results) * changed names of libc and libdl in $JAVA_HOME/lib/i386/green_threads * ldconf -D or ldconfig -D (which ever is right) returns "command not found" * HW: i686 PII 333MHz Celeron w/ 128 Mb RAM, * everything else works: gcc, etc. I get the error even on the simplest program: class helloW { public static void main (Strin args[]) { System.out.print("Hello"); } } Help. Jim