Problem to shutting down JBoss for jBpm

Hi,
This is Jay from Warpera Corp.
I just setup and run Jbpm server. I can run startJbpmServer.sh on RedHat 
Linux 8.0 and Jbpm was up and runnning. But I got  jboss java exception 
when I try to run stopJbpmServer.sh. I can't start Jbpm server again.

# ./StopJbpmServer.sh
JAVA_HOME: /usr/local/jdk1.3.1_09
JBPM_HOME: /home/jayz/jbpm-1.0-beta5.2
Setting JBOSS_HOME to /home/jayz/jbpm-1.0-beta5.2/jboss
Shutting down JBoss for jBpm...
Exception in thread "main" javax.naming.NameNotFoundException: 
RMIAdaptor not bound
        at 
sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:240)
        at 
sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:215)
        at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:117)
        at org.jnp.server.NamingServer_Stub.lookup(Unknown Source)
        at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:492)
        at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:471)
        at javax.naming.InitialContext.lookup(InitialContext.java:345)
        at org.jboss.Shutdown.main(Shutdown.java:180)

Any ideas?
Thanks.
Jay



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