[IPython-user] ipython won't take >b< from the keyboard

[Glenn]

Hi,

I'm running python 2.5.4 on os-x 10.5.6 (PPC). I just downloaded and  
installed ipython 0.9.1.

I've played with ipython a bit, and most behavior is as expected,  
except when I type a 'b', the computer makes a sound just like when I  
try to delete past the beginning of a line, and it doesn't display the  
'b'. So things like 'from pylab import *' fail.

Has anyone seen this before? What can I do to fix it?

Glenn