JRun crashed casually

[blues4]

I found that there would be an error message "javaw.exe Access violation(0xc0000005), Address:0x1003ed4f"   shown by the Dr.Watson, (see the attachment jpg file). Then I should restart my JRun again. I never saw this message before when I ran my jrun in my testing machine. This was happend in my production machine and after the production ran after 3 months. This error would show casually, maybe 8 times a day, or 2 times a day, event 0 time a day after I port my jrun to my production machine. Anybody knows this kind of problem?   My production environment: OS: NT server 4.0 + SP5 Web Server: IIS 4.0 JRun: JRun 2.3.3 pro Machine: Compaqe Server CPU: Xeon 600 * 2 CPUs RAM: 512 MB     Best Regards, Blues.

JRun_error.jpg