Session configuration problems

[eluser]LuckyFella73[/eluser]
Thank you so much for taking the time to explain all the basics!

In the meantime I found out that in my case the problem was the
flash part. It seems that if the page request to a php file is
comming from a swf file, no cookie is sent to the server (like
you explained what normally happens when requesting a page by a browser)
So there is never an update at the server/ cookie and the session
expires even if a php file was called in the meantime.

I now did it like you suggested before: saving the start time in my
session and compare at every click. It works fine - thanks again!