Yeah, about a minute after I typed the above, I ran it from a shell with the -ip parameter, then it worked fine. I'm just not sure what to configure so that I can just click the icon.
Yes, btw, the Peg is online with DSL and MOSnet. It gets DHCP from the DSL router and it, along with two Macs and a Windows box, works just fine on the net. Well, it'll work better once Sputnik is finished but that's another post
Thanks for the help everyone.