I'm trying to fix problems with ediff under mswindows and coming across some bizarre code: in ediff-wind.el we have: (set-specifier top-toolbar-height (list ctl-frame 2)) (sit-for 0) (set-specifier top-toolbar-height (list ctl-frame 0)) Which used to break under mswindows since you can't display anything in a toolbar 2 pixels high. Can someone explain what this code is trying to do? Next we have: ;; synchronize so the cursor will move to control frame ;; per RMS suggestion (if (ediff-window-display-p) (let ((count 7)) (sit-for .1) (while (and (not (frame-visible-p ctl-frame)) (> count 0)) (setq count (1- count)) (sit-for .3)))) Now I can't even byte compile this because of the .3 and .1 - I get errors about invalid read syntax. Similarly if I try and debug it. And if I try and run it I get wrong type argument - numberp, 0\.0:876386483 Commenting this code out makes things work much better but what is it trying to do? Should (sit-for .1) work? andy --------------------------------------------------------------------------- " .sigs are like your face - rarely seen by you and uglier than you think" Dr Andy Piper, Technical Architect, Parallax Solutions Ltd mail: andyp(a)parallax.co.uk web: www.parallax.co.uk/~andyp