hi: I am using ns-2.1b6 running on redhat 7.1. I modifies AODV source code, and run a ns script. The question is when ns is running, it seems dead. I don't know what is wrong with it. Is there someway to debug ns? or what should I do to detect the errors? Thanks, bo sun __________________________________________________ Do You Yahoo!? Listen to your Yahoo! Mail messages from any phone. http://phone.yahoo.com