diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index a6554075f..86c220bd2 100644
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -756,7 +756,7 @@ class ApplicationController < ActionController::Base
 
   # Returns a string that can be used as filename value in Content-Disposition header
   def filename_for_content_disposition(name)
-    request.env['HTTP_USER_AGENT'] =~ %r{MSIE} ? ERB::Util.url_encode(name) : name
+    request.env['HTTP_USER_AGENT'] =~ %r{MSIE|Trident} ? ERB::Util.url_encode(name) : name
   end
 
   def api_request?
diff --git a/app/views/files/index.html.erb b/app/views/files/index.html.erb
index 656baaf63..782efbb22 100644
--- a/app/views/files/index.html.erb
+++ b/app/views/files/index.html.erb
@@ -234,21 +234,23 @@
     //第二种是改变某个tag名称。其他所有的资源如果拥有这个tag。那么对应的tag名也要改掉。
     //目前这两种依据 的来源就是 是否 传了参数 id。如果有id。就指定了资源id，就是第一种情况。如果没有id。就是第二种情况
     function rename_tag(domEle,name,id,type){
-        isdb = true; //这是双击
-        //clearTimeout(clickFunction);
-        if(domEle.children().get(0) != undefined ){ //已经是编辑框的情况下不要动
-            return;
+        if(String(id) != '' || '<%=User.current.allowed_to?(:as_teacher,@course)%>' == 'true' ) { //如果有id ，或者是老师就都能编辑，否则，没有id，不是老师就不能编辑
+            isdb = true; //这是双击
+            //clearTimeout(clickFunction);
+            if (domEle.children().get(0) != undefined) { //已经是编辑框的情况下不要动
+                return;
+            }
+            tagNameHtml = domEle.parent().html()
+            tagName = name;
+            parentCssBorder = domEle.parent().css("border");
+            ele = domEle;
+            tagId = id;
+            taggableType = type;
+            width = parseInt(domEle.css('width').replace('px', '')) >= 100 ? parseInt(domEle.css('width').replace('px', '')) : 100
+            domEle.html('<input name=""  id="renameTagName" maxlength="<%=Setting.tags_max_length%>" minlength="<%= Setting.tags_min_length%>" style="width:' + width + 'px;" value="' + name + '"/>');
+            domEle.parent().css("border", "1px solid #ffffff");
+            $("#renameTagName").focus();
         }
-        tagNameHtml = domEle.parent().html()
-        tagName = name;
-        parentCssBorder = domEle.parent().css("border");
-        ele = domEle;
-        tagId = id;
-        taggableType = type;
-        width = parseInt(domEle.css('width').replace('px','')) >=100 ?  parseInt(domEle.css('width').replace('px','')) : 100
-        domEle.html('<input name=""  id="renameTagName" maxlength="<%=Setting.tags_max_length%>" minlength="<%= Setting.tags_min_length%>" style="width:'+width +'px;" value="'+name+'"/>');
-        domEle.parent().css("border","1px solid #ffffff");
-        $("#renameTagName").focus();
     }
   //监听所有的单击事件
     $(function(){
diff --git a/app/views/memos/show.html.erb b/app/views/memos/show.html.erb
index 4224d0987..d6acabd9e 100644
--- a/app/views/memos/show.html.erb
+++ b/app/views/memos/show.html.erb
@@ -86,15 +86,15 @@
     <div class="homepagePostReplyBanner">
       <div class="homepagePostReplyBannerCount">回复（<%=@reply_count %>）</div>
       <div class="homepagePostReplyBannerTime"></div>
-      <div class="homepagePostReplyBannerMore">
-        <% if @reply_count > 2%>
-        <a href="javascript:void(0);" class="replyGrey"  id="reply_btn_<%= @memo.id%>" onclick="expand_reply('#reply_div_<%= @memo.id %>','#reply_btn_<%= @memo.id%>')" data-count="<%= @reply_count %>" data-init="0" >点击展开更多回复</a>
-        <% end %>
-      </div>
+      <!--<div class="homepagePostReplyBannerMore">-->
+        <!--<%# if @reply_count > 2%>-->
+        <!--<a# href="javascript:void(0);" class="replyGrey"  id="reply_btn_<%#= @memo.id%>" onclick="expand_reply('#reply_div_<%#= @memo.id %>','#reply_btn_<%#= @memo.id%>')" data-count="<%= @reply_count %>" data-init="0" >点击展开更多回复</a>-->
+        <!--<%# end %>-->
+      <!--</div>-->
     </div>
     <div class="" id="reply_div_<%=  @memo.id %>">
     <% @replies.each_with_index  do |reply,i| %>
-    <div class="homepagePostReplyContainer" style="display: <%= i >= 2 ? 'none':''%>">
+    <div class="homepagePostReplyContainer" >
       <div class="homepagePostReplyPortrait">
           <%= link_to image_tag(url_to_avatar(reply.author), :width => 33,:height => 33), user_path(reply.author) %>
       </div>
diff --git a/public/stylesheets/nyan.css b/public/stylesheets/nyan.css
index b64e60831..b476210b1 100644
--- a/public/stylesheets/nyan.css
+++ b/public/stylesheets/nyan.css
@@ -724,6 +724,10 @@ div.actions input[type="text"] {
     word-wrap: break-word;
 }
 
+.memo-content li {
+    list-style-type: decimal;
+}
+
 .memo-timestamp {
     position: absolute;
     bottom: 0px;