? I though I was the only one with that problem, and I hadn't realized that the readline was causing it. Unfortunately, I don't know enough about mzscheme to even know where to begin looking to fix it... I've seen it in other mzscheme things, though, so it's not just Arc.
Exactly! But let me try something. Okay, if I skip ssh that doesn't help at all. Readline moves the prompt like you described. Rlwrap does it, and so does the .arcshrc thing.
Funny thing is, debian's mzscheme + arc2.tar are fine, no problem at all. So it must be my mzscheme.