open port with no network connection

I've been playing with rebweb.r and webserv.r for local testing and they work ok until I take my laptop off the network. Once I'm off the network I get: Access Error: Error opening socket listen port Near: listen-port: open/lines join tcp://: port This only happens in linux. On my Windows XP desktop, it works the same whether connected or not. I didn't think it was my linux setup because I have another small webserver written in ruby that works fine in linux when disconnected from the network. But then when I saw that rebol works in XP, I began to suspect my environment in linux. If I run ifconfig, I see the local loopback interface is configured. I'm using View (not Pro) 1.2.1. Any ideas? Thanks. mike

I don't know why, but this is what I've done before: listen: attempt [open/lines/direct join tcp://: port] if listen is none then I try to open again or quit. I found this necessary on Windows though I can't remember exactly why. :) Anton.