Hi, Who can help me to install snapshot,and my ns is ns-2.1b5,can I use snapshot for ns-2.1b7? Thanks _________________________ ���������У���� ��ChinaRenУ��¼�ɡ� http://alumni.chinaren.com _________________________ ChinaRen��ϷƵ����������Ϸʱ�������� http://gclub.chinaren.com