Well, some nice person told me about the above function session_cache_limiter('public'), which ended those nasty "warning: page has expired messages, it's not like my pages are anything out of the ordinary, just searching will use form posts and those warnings are obnoxious.
Well, now I have another problem. I put this:
session_cache_limiter('public');
at the start of the script, and I can hit the back button on the browser till the cows come home, BUT...
Now, if I have added a record to a list, I can't display the new list item, EVEN IF I HIT REFRESH.
There must be some happy medium that will let (me or someone) hit the back button and yet allow a refresh when I need it.
Thank you for your help.
Sam