Hi all, I have made some changes in a protocol's code and it has compiled successfully also. When I run the simulation I get the error "segmentation fault". I have been stuck on this error for last two days almost and tried many ways to remove it. Please help me out Best Regards Aamir Khan _________________________________________________________________ Hotmail: Powerful Free email with security by Microsoft. https://signup.live.com/signup.aspx?id=60969