InfoPath Dev

Hi ,

Can anyone please help me  with this error? When i try to open the .xsn file it shows the error

"The form template is trying to access files and settings on your computer. InfoPath cannot grant access to these files and settings because the form template is not fully trusted. For a form to run with full trust, it must be installed or digitally signed with a certificate."

Are you able to open the form in design mode? Do so and check the Security settings under Form Options. Change the settings, save the xsn and try again. Something must have been added to the form (perhaps code?) to make the template require full trust, but that's just a guess.