Hi, this very probably has nothing to do with Zope but I'm at my wits end and maybe one of you has had this before so here goes: - I have a large-ish form (~30 input fields) which has a method="POST" - When using Internet Explorer (tested: 5.5 and 6.0 SP 1), submitting this form seems to result in *two* POST Requests - This cannot be reproduced reliably, i.e. roughly half the time form submission results in one POST (as it should be), half the time there are two POSTs - With Mozilla 1.1 (win32, linux) theres always just one POST - I captured network traffic (using Ethereal); IE seems to just close the connection, sometimes even before finishing to send the POST data, without waiting for an answer (HTTP /1.1 200 OK etc.). It just sends a TCP FIN, ACK and opens a new connection. - There is virtually no time lag between the two POSTs (no "hang" or something like that) Has anyone had anything like this before? Do you have any tips on debugging this? Any help would be greatly appreciated. Thanks, peter. ps.: System: w2k pro, Zope 2.5.1 binary, browsers: IE 5.5, Mozilla 1.1 (linux, win32)