Really having a headache on this...have done a lots of searching the solution online but not successful. Until I decided the join forum taking chances can solve this problem...The error info is below, really appreciate anyone can share their thoughts.

InfoPath cannot submit the form. An error occurred while the form was being submitted. The form cannot be submitted to the following location: "http://server***** -formexample.xml The file "http://server***** -formexample.xml" is checked out for editing by i:0#.w|domain\username. The operation completed successfully.