I've noted all the times folks have mentioned that PowerPoint and Sync should
never be used in the same sentence, but still have a question.  I have
several presentation that display song lyrics and related still pictures
meant to be in sync with a wav file.  Of course the eratic timing on various
machines and even successive plays on the same machine drives me nuts.  
Especially the first time I spent hours setting the timing up perfectly on my
home machine only to find that it wouldn't work one the machine where I
needed to play the presentation.    

I have learned that by taking out all the automated timing I can play the
presentations successfully on all but the least capable machines simply by
tapping the space bar at the appropriate time.  It seems that in the
automated versions, different machines take different times to process
animation in the slides thus making anything based on completion of a
previous slide doomed to fall out of sync with the audio track.  However
almost every machine is ready to display the next slide instantly when the
space bar is tapped.  If a program existed or could be written to sit in the
backgrouns and create a "space bar pressed" code at the correct intervals
wouldn't that allow sync to be maintained on different machines?  If such a
program doesn't exist, I would think it would be very simple to write for
someone with that sort of talent.  I don't have any programming talent, but I
work with some folks that do, so I'm hoping to get some opions as to whether
this would work or not, or if in fact some program of this nature already
exists.

JC