He's currently wandering the Lucky 38 Suite with no 'recruit' dialogue option. I haven't joined the Legion (failed that long ago); I haven't done anything that would apparently upset him. In fact, when I dialogue him he says I'm on the right track!

I guess this guy has issues, hmm? Anyone have a suggestion? I've tried going back a few saves -- don't really want to go back as far as last time I had him.

Edit/Update: Nevermind. I dismissed Robodog and the dialogue option appeared. I'd read about problems with ED-E, guess they apply to the dog as well.