I have recently installed ns2 and have had some problems. Firstly, On your web page you have not stated that you need to be running Perl v5 otherwise the test-suite does not work (with version 4 the Perl script returned nothing at all causing an xgraph error) Secondly, can you please tell me how to join the ns mailing list as I do not seem to be able to find this. Thanks in advance Rory