ancho:~ % uname -a
SunOS ancho 5.5.1 Generic sun4m sparc SUNW,SPARCstation-20
ancho:~ % echo $ZSH_VERSION
3.0.0
ancho:~ % setopt
appendhistory
autocd
autolist
autoremoveslash
nobgnice
correct
extendedhistory
histignoredups
histnostore
nohup
interactive
monitor
numericglobsort
pushdtohome
rmstarsilent
shinstdin
zle
ancho:~ % . zt
zt: parse error near `}' [13]

[the file zt is included as an attachment]