diff --git a/app/views/application/_submission_short.html.haml b/app/views/application/_submission_short.html.haml
--- a/app/views/application/_submission_short.html.haml
+++ b/app/views/application/_submission_short.html.haml
@@ -23,8 +23,10 @@
   - if GraderConfiguration.show_grading_result
     = link_to '[detailed result]', :action => 'result', :id => submission.id
   - if submission.graded_at
-    %button.btn.btn-info.btn-xs{type: 'button', data: {toggle: 'modal', target: '#compiler'}}
-      =t 'main.cmp_msg'
+    = link_to "#{t 'main.cmp_msg'}", compiler_msg_submission_path(submission), {popup: true,remote: true,class: 'btn btn-xs btn-info'}
+    -#
+      %button.btn.btn-info.btn-xs{type: 'button', data: {toggle: 'modal', target: '#compiler'}}
+        =t 'main.cmp_msg'
   = link_to "#{t 'main.src_link'}", download_submission_path(submission.id), class: 'btn btn-xs btn-info'
   = link_to "#{t 'main.submissions_link'}", problem_submissions_path(problem_id), class: 'btn btn-xs btn-info'
 
diff --git a/app/views/submissions/edit.html.haml b/app/views/submissions/edit.html.haml
--- a/app/views/submissions/edit.html.haml
+++ b/app/views/submissions/edit.html.haml
@@ -48,18 +48,19 @@
               = render :partial => 'submission_short',
                 :locals => {submission: @submission, problem_name: @problem.name, problem_id: @problem.id }
 
-- if @submission
-  .modal.fade#compiler{tabindex: -1,role: 'dialog'}
-    .modal-dialog.modal-lg{role:'document'}
-      .modal-content
-        .modal-header
-          %button.close{type: 'button', data: {dismissed: :modal}, aria: {label: 'close'}}
-            %span{aria: {hidden: 'true'}, data: {dismiss: 'modal'}} ×
-          %h4 Compiler message
-        .modal-body
-          %pre#compiler_msg= @submission.compiler_message
-        .modal-footer
-          %button.btn.btn-default{type: 'button', data: {dismiss: 'modal'}} Close
+.modal.fade#compiler{tabindex: -1,role: 'dialog'}
+  .modal-dialog.modal-lg{role:'document'}
+    .modal-content
+      .modal-header
+        %button.close{type: 'button', data: {dismissed: :modal}, aria: {label: 'close'}}
+          %span{aria: {hidden: 'true'}, data: {dismiss: 'modal'}} ×
+        %h4 Compiler message
+      .modal-body
+        %pre#compiler_msg
+          - if @submission
+            = @submission.compiler_message
+      .modal-footer
+        %button.btn.btn-default{type: 'button', data: {dismiss: 'modal'}} Close
 
 :javascript
   $(document).ready(function() {
diff --git a/app/views/submissions/show.html.haml b/app/views/submissions/show.html.haml
--- a/app/views/submissions/show.html.haml
+++ b/app/views/submissions/show.html.haml
@@ -30,11 +30,14 @@
           %td.text-right
             %strong User
           %td
-            - if @submission.user 
-              = link_to "#{@submission.user.login}", stat_user_path(@submission.user)
-              = @submission.user.full_name
+            - if @current_user.admin? ||@current_user == @submission.user
+              - if @submission.user
+                = link_to "#{@submission.user.login}", stat_user_path(@submission.user)
+                = @submission.user.full_name
+              - else
+                = "(n/a)"
             - else
-              = "(n/a)"
+              = '-- REDACTED --'
         %tr
           %td.text-right
             %strong Task