diff --git a/app/controllers/boards_controller.rb b/app/controllers/boards_controller.rb
index a301d270d..f6ec09b2a 100644
--- a/app/controllers/boards_controller.rb
+++ b/app/controllers/boards_controller.rb
@@ -51,7 +51,7 @@ class BoardsController < ApplicationController
             @boards = @course.boards.includes(:last_message => :author).all
           end
         end
-        if @boards.size == 1
+        unless @course.boards.empty?
           @board = @course.boards.first
         end
         show and return
diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index 484a3189c..fed074bdb 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -329,7 +329,7 @@ module ApplicationHelper
     imagesize = attachment.thumbnail(:size => "50*50")
     imagepath = named_attachment_path(attachment, attachment.filename)
     if imagesize
-      link_to image_tag(imagesize),
+      link_to image_tag(thumbnail_path(attachment,"50")),
               imagepath,
               :title => attachment.filename
     else
diff --git a/app/helpers/repositories_helper.rb b/app/helpers/repositories_helper.rb
index 3c7123435..773560932 100644
--- a/app/helpers/repositories_helper.rb
+++ b/app/helpers/repositories_helper.rb
@@ -18,7 +18,11 @@
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 
 module RepositoriesHelper
-  ROOT_PATH="/home/pdl/redmine-2.3.2-0/apache2/"
+  if Rails.env.development?
+    ROOT_PATH="/tmp/" if Rails.env.development?
+  else
+    ROOT_PATH="/home/pdl/redmine-2.3.2-0/apache2/"
+  end
   PROJECT_PATH_CUT =  40
   REPO_IP_ADDRESS = Setting.repository_domain
 
diff --git a/app/views/issues/_form.html.erb b/app/views/issues/_form.html.erb
index 5679c92d4..f0e28a975 100644
--- a/app/views/issues/_form.html.erb
+++ b/app/views/issues/_form.html.erb
@@ -38,8 +38,7 @@
               <!--Added by young-->
               <%= javascript_tag do %>
                   observeAutocompleteField('issue_subject',
-                  '<%= escape_javascript auto_complete_issues_path(:project_id => @project, :scope => (Setting.cross_project_issue_relations? ? 'all' : nil)) %>
-                  ',
+                  '<%= escape_javascript auto_complete_issues_path(:project_id => @project, :scope => (Setting.cross_project_issue_relations? ? 'all' : nil)) %>',
                   { select: function(event, ui) {
                   $('input#issue_subject').val(ui.item.value);
                   }
@@ -113,4 +112,4 @@
     <!--<div class="cl"></div>-->
     <!--</div>-->
     <%= call_hook(:view_issues_form_details_bottom, {:issue => @issue, :form => f}) %>
-<% end %>
\ No newline at end of file
+<% end %>
diff --git a/app/views/layouts/_base_feedback.html.erb b/app/views/layouts/_base_feedback.html.erb
index fb5e8f2ab..beaf8d821 100644
--- a/app/views/layouts/_base_feedback.html.erb
+++ b/app/views/layouts/_base_feedback.html.erb
@@ -141,15 +141,26 @@ function cookieget(n)
     $(document).ready(function(){
         $("#subject").keydown(function(){
             var curLength=$("#subject").val().length;
-            if(curLength>=50){
-                var num=$("#subject").val().substr(0,49);
+            if(curLength>50){
+                var num=$("#subject").val().substr(0,50);
                 $("#subject").val(num);
             }
             else{
-                $("#textCount").text(49-$("#subject").val().length)
+                $("#textCount").text(50-$("#subject").val().length)
+            }
+        })
+        $("#subject").keyup(function(){
+            var curLength=$("#subject").val().length;
+            if(curLength>50){
+                var num=$("#subject").val().substr(0,50);
+                $("#subject").val(num);
+            }
+            else{
+                $("#textCount").text(50-$("#subject").val().length)
             }
         })
     })
+
 </script>
 <div class="scrollsidebar" id="scrollsidebar" style="float: right">
     <div class="side_content">
diff --git a/app/views/messages/_course_show.html.erb b/app/views/messages/_course_show.html.erb
index 018783fbd..579b26d65 100644
--- a/app/views/messages/_course_show.html.erb
+++ b/app/views/messages/_course_show.html.erb
@@ -41,7 +41,7 @@
               :class => 'talk_edit fr'
       ) if @message.course_destroyable_by?(User.current) %>
   <div class="cl"></div>
-  <div class="talk_info mb10 upload_img"><%= @topic.content.html_safe %></div>
+  <div class="talk_info mb10 upload_img break_word"><%= @topic.content.html_safe %></div>
   <div class="talk_info mb10"><%= link_to_attachments_course @topic, :author => false %></div>
   <!-- <a href="#" class=" link_file ml60">附件：爱覅俄方if.zip(27.5kB)</a>-->
   <div class="cl"></div>
@@ -65,7 +65,7 @@
         <div class="ping_C mb10 ml50" id="<%= "message-#{message.id}" %>">
           <div class="ping_dispic"><%= link_to image_tag(url_to_avatar(message.author), :width => '46',:height => '46'), user_path(message.author) %></div>
           <div class="ping_discon">
-            <div class="ping_distop upload_img">
+            <div class="ping_distop upload_img break_word">
               <%= link_to_user_header message.author,false,:class => 'c_blue fb fl mb10 ' %>
               <span class="c_grey fr"><%= format_time(message.created_on) %></span>
               <div class="cl"></div>
diff --git a/app/views/news/_course_show.html.erb b/app/views/news/_course_show.html.erb
index fe73d3d75..63e2ffb85 100644
--- a/app/views/news/_course_show.html.erb
+++ b/app/views/news/_course_show.html.erb
@@ -68,7 +68,7 @@
       <div class="ping_C mb10">
         <div class="ping_dispic"><%= link_to image_tag(url_to_avatar(comment.author),:width => 42,:height => 42), user_path(comment.author)%></div>
         <div class="ping_discon">
-          <div class="ping_distop upload_img">
+          <div class="ping_distop upload_img break_word">
             <%= link_to_user_header(comment.author,false,:class => 'c_blue fb fl mb10 ') if comment.respond_to?(:author) %>
             <span class="c_grey fr">
                 <%= format_time(comment.created_on) %>
diff --git a/public/javascripts/feedback.js b/public/javascripts/feedback.js
index 5b06be7e6..1bbab1f45 100644
--- a/public/javascripts/feedback.js
+++ b/public/javascripts/feedback.js
@@ -116,12 +116,22 @@ $(document).ready(function () {
 $(document).ready(function(){
     $("#subject").keydown(function(){
         var curLength=$("#subject").val().length;
-        if(curLength>=50){
-            var num=$("#subject").val().substr(0,49);
+        if(curLength>50){
+            var num=$("#subject").val().substr(0,50);
             $("#subject").val(num);
         }
         else{
-            $("#textCount").text(49-$("#subject").val().length);
+            $("#textCount").text(50-$("#subject").val().length)
+        }
+    })
+    $("#subject").keyup(function(){
+        var curLength=$("#subject").val().length;
+        if(curLength>50){
+            var num=$("#subject").val().substr(0,50);
+            $("#subject").val(num);
+        }
+        else{
+            $("#textCount").text(50-$("#subject").val().length)
         }
     })
 })
\ No newline at end of file
diff --git a/public/stylesheets/courses.css b/public/stylesheets/courses.css
index b8e23f4be..1e4b4fedf 100644
--- a/public/stylesheets/courses.css
+++ b/public/stylesheets/courses.css
@@ -345,7 +345,7 @@ a:hover.st_add{ color:#ff8e15;}
 a:hover.link_file{ background:url(../images/pic_file.png) 0 -25px no-repeat; color:#3ca5c6;}
 .r_txt_tit{width:500px; overflow:hidden; white-space: nowrap; text-overflow:ellipsis;color:#15bccf; float:left; color:#09658c; font-size:14px;}
 
-blockquote {background: #eeeeee;padding: 10px;margin-bottom: 10px;}
+blockquote {background: #eeeeee;padding: 10px;margin-bottom: 10px;word-break: break-all;word-wrap: break-word;}
 .respond-form{display: none;margin: auto;clear: both;}
 
 .reply_btn{ cursor:pointer; -moz-border-radius:3px;  -webkit-border-radius:3px; border:1px solid #ccc; color:#999;  border-radius:3px; padding:2px 10px; margin-bottom:10px;display: block;margin-left: 470px;}