3.1.1 variable completion problem

["Adam R. Paul" <adamp@gargoyle.pdev.sco.COM>]

Good afternoon,
	I just compiled & installed zsh 3.1.1 on my SCO OpenServer 5 box, and
am seeing the following odd behaviour when tab-completing many times on a
variable:

> echo $Z<tab>
  results in
> echo $ZSH_
  hitting tab again autolists
ZSH_NAME ZSH_VERSION
  hitting tab another time completes
> echo $ZSH_NAME
  and hitting it one more time completes:
> echo $ZSH_VERSIO
  another tab yields:
> echo $ZSH_NA
  another becomes:
> echo $ZSH_VERS
  yet another becomes:
> echo $ZSH_
  another:
> echo $ZSH_VE
  another:
> echo $ZS
  another one puts the cursor at the beginning of my prompt (?!?!)
  another tab puts the cursor after 'echo'
  another puts the cursor back at the start of my prompt again
  another then coredumps zsh

Any ideas?

Thanks,
	_Adam

-----
Adam R. Paul   !  SCO Engineering
adamp@sco.com  !  from std import disclaimer