Are you on Windows? I've had anamolies with Ruby/irb with another editor
(JEdit), no diagnosis or fix, and had to give up and go to a separate window
for command-line irb.

"soxinbox" <faker / yahoo.com> wrote in message
news:jdbke.15939$tM3.1564 / twister.nyroc.rr.com...
> Has any one had a problem with the latest release of Ruby and the included
> sciTE editor. When I open the irb screen, every character I type shows up
> twice, except the backspace which only wipes one character. If I type a=b,
> the screen shows aa==bb. Do I have something set up wrong? The rest of the
> sciTE windows work fine, its just the built in irb.
>
>