[Zope] HTTP caching troubles

I use a "HTTP cache manager" (Zope 2.4) for caching dynamic pages written in python (external methods called from DTML methods). It seems to work correctly when I try on my computer (which is also the server) : the script is called only the first time. But when I try on another computer (but same server) the script is called the first time too ! It's not a problem of cache "interval" (I checked it). It seems that the cache is specific to a computer...(!!?) Is there an explanation ? solution ? ____________________________________________________________________ - http://www.WebMailSPro.com - >> VOTRE service d'email sans pub avec VOTRE nom de domaine