I can see the extra pixel because it was from things changing their size... and hence their line up to the edge of something else, after I had carefully aligned everything, grouped them and made a symbol out of the group in order to save them to the common library thinking the work on that bit was done.
On applying the symbol to the next part of the job, I see that things are not lined up as I thought they had been, and it was figuring out how I could have not noticed the misalignment before making the symbol that I figured out what was happening.
Later I will take a screen shot and show the behavior.
Thanks for confirming that this NOT the way it is supposed to work....
I read Jim's book a couple years ago and this is the first project I have taken up since building a couple small personal sites with Jim's book and CS4... so I can't really remembre how things are supposed to work.
