32 bit OS, with 4GB. The 3GB option is on. There is ~3GB free memory, JavaService is only at 1GB. Could it be that the 3GB option is causing the problem. Have also seen this error message 2008-04-03 14:55:27,508 ERROR [org.jboss.util.threadpool.BasicThreadPool] org.jboss.util.threadpool.ThreadPoolFullException: java.lang.OutOfMemoryError: unable to create new native thread org.jboss.util.threadpool.ThreadPoolFullException: java.lang.OutOfMemoryError: unable to create new native thread at org.jboss.util.threadpool.BasicThreadPool.execute(BasicThreadPool.java:384) at org.jboss.util.threadpool.BasicThreadPool.runTaskWrapper(BasicThreadPool.java:165) at org.jboss.util.threadpool.BasicThreadPool.run(BasicThreadPool.java:184) at org.jboss.util.threadpool.BasicThreadPool.run(BasicThreadPool.java:179) at org.jboss.util.timeout.TimeoutFactory.doWork(TimeoutFactory.java:531) at org.jboss.util.timeout.TimeoutFactory.access$300(TimeoutFactory.java:30) at org.jboss.util.timeout.TimeoutFactory$1.run(TimeoutFactory.java:566) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4141438#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...