Norton Internet Security Automatically Shut Down My Intranet

I was trying to test my intranet project in my PC with Windows XP, Tomcat, and Norton Internet Security. After I started Tomcat, once I opened my intranet thru localhost address, Norton automatically shut down my browser. Can anybody tell me how to change the Norton setting so that I can complete my project? I tried to shut down Norton but with no luck. Any help is highly appreciated.