I've noticed that if you have unmatched string quotes (',",`) in comments in ksh-mode, that XEmacs gets confused about what's inside and outside quotes in the code, but only sometimes. Ideas anyone? M-x font-lock-fontify-buffer fixes things. For example: xemacs -vanilla this file: # -*- ksh -*- # Don't put unmatched quotes in comments compctl -j -P % -x 's[-] p[1]' -k signals -- kill compctl -z -P '%' bg compctl -j -P '%' fg wait jobs disown compctl -A shift compctl -caF type whence which where compctl -F unfunction compctl -a unalias compctl -v unset vared compctl -v -S '=' -q declare export integer local readonly typeset compctl -e disable compctl -d enable then M-x font-lock-mode then start adding and removing space at the beginning of the lower lines; the string regions get confused. Now remove the "'" in the comment and all is well. greg