I installed Tomcat 4.0.4 in my windows xp-SP1. I used Java service to wrap it as a wondows service. The service is set to run automatically. Every now and then, I would run into this windows' error on Java Service. Its detail would say "Faulting application tomcat.exe version 1.1.0.0. Faulting Module ntdll.dll". Does anyone have any idea of why this may happen? What may cause tomcat or windows to crash because of this?? Thanks!