InfoPath Dev

Thanks for your helps and sorry for late reply First i tried Janice's advise and added site to trusted sites but unfortunately i didn't worked out and when i asked about our firewall to our IT Department they say there is no rule against digital certification and communication to our certification server. I'll forward your message ...

 Hi.. First of all I'm kinda newbie and my english is not so good.. I created a simple form with 1 section and 2 text field in the section. Then i enabled the sections digital signature settings. also i enabled the forms security for my section again. I published it to sharepoint list, in sharepoint list i choose to display it always ...