zsh command line and speakup

[Justin Ekis]

Hi all.
I'm trying to switch to the zsh shell but I'm getting some odd behavior 
which is a little hard to explain and somewhat annoying. 
Using zsh, when I type the second character of a command speakup always 
repeats the first two letters I typed again. This doesn't happen with 
any other shell or anywhere else where you'd type at a prompt.
It used to show up in lftp but it's mysteriously gone now.

Any ideas what could be causing this? I'm using slackware current with 
zsh 4.2.0. Yes I know current can be unstable but I've been using it for 
months now and this is the first even minor glitch.

Thanks in advance for any advice.