William,

" ...repost from data" (that hapens on IE4 on IE 5.5 the window message is even nasty). my first question will be: there is any way to avoid this window or force the submit and render the page with the new data?.
>
>...then sometimes on some machines I had noticed that the updated data doesn't show on the form until a second refresh, that I had to do manually.

You might try adding this at the top of the ASP page

<%Response.Expires = -1 %>

which may help prevent the browser from caching the page.