Sometimes when submitting forms using post (while secure (SSL), we recieve an error page with the generic 'page cannot be found' error. We're working under the assumption that this is a caching problem but we've tried every variation of pragma and cache-control that we've conceived of with no success. It seems to be IE specific because Netscape handles the posts fine. Can anyone be of any help?
Not to ignore what you just said, but using pragma should work. I suggest reinstalling IE. Have you tried the form on multiple computers? I had a problem very similar to that of yours. It was an error in IE that was ignoring the pragma and cache functions.
We've tried multiple computers and multiple browsers, currently we found a working solution by editing our httpd.conf on the Apache server to set the keepalive to 60 seconds rather than the default 15