diff --git a/common/lib/capa/capa/capa_problem.py b/common/lib/capa/capa/capa_problem.py
index 9c383d114d..efc96fc717 100644
--- a/common/lib/capa/capa/capa_problem.py
+++ b/common/lib/capa/capa/capa_problem.py
@@ -195,7 +195,7 @@ class LoncapaProblem(object):
         TODO: Handle multiple problems on one page sync issues.
         """
         success=False
-        message = ""
+        message = "Could not find a valid responder."
         log.debug("in lcp")
         for responder in self.responders.values():
             if hasattr(responder, 'handle_message_post'):
diff --git a/common/lib/capa/capa/responsetypes.py b/common/lib/capa/capa/responsetypes.py
index 038586f7f4..e9a363adba 100644
--- a/common/lib/capa/capa/responsetypes.py
+++ b/common/lib/capa/capa/responsetypes.py
@@ -1932,9 +1932,10 @@ class OpenEndedResponse(LoncapaResponse):
             if tag not in survey_responses:
                 return False, "Could not find needed tag {0}".format(tag)
         try:
-            submission_id=int(survey_responses['submission_id'][0])
-            grader_id = int(survey_responses['grader_id'][0])
-            feedback = str(survey_responses['feedback'][0])
+            log.debug(survey_responses['submission_id'])
+            submission_id=int(survey_responses['submission_id'])
+            grader_id = int(survey_responses['grader_id'])
+            feedback = str(survey_responses['feedback'])
         except:
             error_message="Could not parse submission id, grader id, or feedback from message_post ajax call."
             log.exception(error_message)
@@ -1947,7 +1948,12 @@ class OpenEndedResponse(LoncapaResponse):
                                                  anonymous_student_id +
                                                  self.answer_id)
 
-        xheader = xqueue_interface.make_xheader(lms_key=queuekey,queue_name=self.message_queue_name)
+        xheader = xqueue_interface.make_xheader(
+            lms_callback_url=self.system.xqueue['callback_url'],
+            lms_key=queuekey,
+            queue_name=self.message_queue_name
+        )
+
         student_info = {'anonymous_student_id': anonymous_student_id,
                         'submission_time': qtime,
                         }
@@ -1966,7 +1972,7 @@ class OpenEndedResponse(LoncapaResponse):
         if error:
             success=False
 
-        return success, "Successfully sent to queue."
+        return success, "Successfully submitted your feedback."
 
     def get_score(self, student_answers):
 
diff --git a/common/lib/xmodule/xmodule/capa_module.py b/common/lib/xmodule/xmodule/capa_module.py
index 8d72fdf01c..d65fa1f40a 100644
--- a/common/lib/xmodule/xmodule/capa_module.py
+++ b/common/lib/xmodule/xmodule/capa_module.py
@@ -407,7 +407,7 @@ class CapaModule(XModule):
 
         success, message = self.lcp.message_post(event_info)
 
-        return {'success' : success}
+        return {'success' : success, 'message' : message}
 
     def closed(self):
         ''' Is the student still allowed to submit answers? '''
diff --git a/common/lib/xmodule/xmodule/js/src/capa/display.coffee b/common/lib/xmodule/xmodule/js/src/capa/display.coffee
index 393435a2e4..1783df0e04 100644
--- a/common/lib/xmodule/xmodule/js/src/capa/display.coffee
+++ b/common/lib/xmodule/xmodule/js/src/capa/display.coffee
@@ -215,7 +215,10 @@ class @Problem
       processData: false
       contentType: false
       success: (response) =>
-          @gentle_alert response.success
+        @gentle_alert response.message
+        switch response.success
+          when 'True', 'true'
+            @$('section.evaluation input.submit-message').hide()
 
     $.ajaxWithPrefix("#{@url}/message_post", settings)