[Zope] Refresh problem

Hi, I think my problem don't depend direct on Zope, but I think, I can here find solution, I have problem with refreshing page (DTML Method), I have page where content come from database, and after change some dates in database content on the page is the same, I have to use refresh-button from browser, and after that I see the changes, under ZMI everything works fine, so it is depending on browser, I know I can use for example: <meta http-equiv="pragma" content="no-cache"></meta> and after that it should works, but it don't, so I ask for a help, regards Adam