Any idea why this happens?

$ irb --readline
/usr/local/lib/ruby/1.6/irb/main.rb:557:in `initialize': uninitialized
constant
IRB::Context::ReadlineInputMethod (NameError)
        from /usr/local/lib/ruby/1.6/irb/main.rb:305:in `new'
        from /usr/local/lib/ruby/1.6/irb/main.rb:305:in `initialize'
        from /usr/local/lib/ruby/1.6/irb/main.rb:51:in `new'
        from /usr/local/lib/ruby/1.6/irb/main.rb:51:in `start'
        from
/usr/local/bin/irb:19                                              

This happened first with the 1.6.1 RPM from the Mandrake ditribution and
then after I installed the 1.6.2 tarball. 

Thanks!

-- 

Joel VanderWerf
skeeler / sirius.com