Success and Video Update

Got it! Hitting the enter key rather than clicking the mouse on the dialog boxes makes the connection. That's either a timing or mouse port serial interrupt issue. Oddly, the return key doesn't do anything. I have TCP/IP networking on my original (modified) Macintosh! I think the memory use is low enough, it should work on a real 128K Macintosh. Is it pronounced "El whip" or "l.w. I.P."? I like the Mexican flair of El Whip! (Actually, it's pronounced "lightweight IP" - boring…)