diff --git a/bbs/register_form_update.php b/bbs/register_form_update.php
index 7cc1039f4..55fc56700 100644
--- a/bbs/register_form_update.php
+++ b/bbs/register_form_update.php
@@ -75,7 +75,10 @@ if ($w == '' || $w == 'u') {
     if ($w=='') {
         if ($msg = exist_mb_id($mb_id))     alert($msg);
 
-        if (!exist_mb_id($mb_recommend))    alert("추천인이 존재하지 않습니다.");
+        if ($config['cf_use_recommend']) {
+            if (!exist_mb_id($mb_recommend))    
+                alert("추천인이 존재하지 않습니다.");
+        }
 
         if (strtolower($mb_id) == strtolower($mb_recommend)) {
             alert('본인을 추천할 수 없습니다.');
diff --git a/bbs/write_comment_update.php b/bbs/write_comment_update.php
index f4fdc3956..4ab8f50e0 100644
--- a/bbs/write_comment_update.php
+++ b/bbs/write_comment_update.php
@@ -81,7 +81,7 @@ if ($w == 'c') // 댓글 입력
                     where wr_id = '$comment_id' ";
         $reply_array = sql_fetch($sql);
         if (!$reply_array['wr_id'])
-            alert('답변할 댓글가 없습니다.\\n\\n답변하는 동안 댓글가 삭제되었을 수 있습니다.');
+            alert('답변할 댓글이 없습니다.\\n\\n답변하는 동안 댓글이 삭제되었을 수 있습니다.');
 
         $tmp_comment = $reply_array['wr_comment'];
 
diff --git a/plugin/syndi/include/include.bbs.delete.php b/plugin/syndi/include/include.bbs.delete.php
index 19aa2c417..a25e50bcb 100644
--- a/plugin/syndi/include/include.bbs.delete.php
+++ b/plugin/syndi/include/include.bbs.delete.php
@@ -28,7 +28,7 @@ $subject_row = sql_fetch($sql);
 
 $_link = './bbs/board.php?bo_table=%s&wr_id=%s';
 $_sql = "insert into {$g4['syndi_log_table']} (content_id, bbs_id, title, link_alternative, delete_date) values('%s','%s','%s','%s','%s')";
-sql_query(sprintf($_sql, $row['wr_id'], $bo_table, addslashes($subject_row['wr_subject']), sprintf($_link, $bo_table, $row['wr_id']), date('YmdHis')));
+sql_query(sprintf($_sql, $row['wr_id'], $bo_table, addslashes($subject_row['wr_subject']), sprintf($_link, $bo_table, $row['wr_id']), date('YmdHis')), false);
 
 $oPing = new SyndicationPing;
 $oPing->setId(SyndicationHandler::getTag('channel', $bo_table));
diff --git a/plugin/syndi/include/include.bbs.delete_all.php b/plugin/syndi/include/include.bbs.delete_all.php
index 248e9a7d4..9361a3e85 100644
--- a/plugin/syndi/include/include.bbs.delete_all.php
+++ b/plugin/syndi/include/include.bbs.delete_all.php
@@ -27,7 +27,7 @@ $subject_row = sql_fetch($sql);
 
 $_link = './bbs/board.php?bo_table=%s&wr_id=%s';
 $_sql = "insert into {$g4['syndi_log_table']} (content_id, bbs_id, title, link_alternative, delete_date) values('%s','%s','%s','%s','%s')";
-sql_query(sprintf($_sql, $row['wr_id'], $bo_table, addslashes($subject_row['wr_subject']), sprintf($_link, $bo_table, $row['wr_id']), date('YmdHis')));
+sql_query(sprintf($_sql, $row['wr_id'], $bo_table, addslashes($subject_row['wr_subject']), sprintf($_link, $bo_table, $row['wr_id']), date('YmdHis')), false);
 
 $oPing = new SyndicationPing;
 $oPing->setId(SyndicationHandler::getTag('channel', $bo_table));
diff --git a/shop/price/_common.php b/shop/price/_common.php
index 7ecf2a999..03a3ab6aa 100644
--- a/shop/price/_common.php
+++ b/shop/price/_common.php
@@ -1,3 +1,3 @@
-<?
+<?php
 include_once('../../common.php');
 ?>
diff --git a/shop/price/about.php b/shop/price/about.php
index 4f342a299..9ecf327b8 100644
--- a/shop/price/about.php
+++ b/shop/price/about.php
@@ -1,4 +1,4 @@
-<?
+<?php
 include_once('./_common.php');
 
 ob_start();
diff --git a/shop/price/about_new.php b/shop/price/about_new.php
index 94cf5fb8a..285a73a5f 100644
--- a/shop/price/about_new.php
+++ b/shop/price/about_new.php
@@ -1,4 +1,4 @@
-<?
+<?php
 include_once('./_common.php');
 
 ob_start();
diff --git a/shop/price/auction.php b/shop/price/auction.php
index 166253caf..f436b904f 100644
--- a/shop/price/auction.php
+++ b/shop/price/auction.php
@@ -1,4 +1,4 @@
-<?
+<?php
 include_once('./_common.php');
 
 ob_start();
diff --git a/shop/price/auction_new.php b/shop/price/auction_new.php
index 66b317dc2..af69af37f 100644
--- a/shop/price/auction_new.php
+++ b/shop/price/auction_new.php
@@ -1,4 +1,4 @@
-<?
+<?php
 include_once('./_common.php');
 
 ob_start();
diff --git a/shop/price/auction_summary.php b/shop/price/auction_summary.php
index b1ed99d08..168e72bcd 100644
--- a/shop/price/auction_summary.php
+++ b/shop/price/auction_summary.php
@@ -1,4 +1,4 @@
-<?
+<?php
 include_once('./_common.php');
 
 ob_start();
diff --git a/shop/price/bb.php b/shop/price/bb.php
index 076b0f374..ad5976867 100644
--- a/shop/price/bb.php
+++ b/shop/price/bb.php
@@ -25,7 +25,7 @@ include_once('./_common.php');
 <meta http-equiv="Pragma" content="no-cache"/>
 </head>
 <body>
-<?
+<?php
 // <p>상품번호^대분류^중분류^소분류^제조사^모델명^상품Url^이미지Url^가격
 $str = "";
 $sql = " select * from {$g4['shop_item_table']}
diff --git a/shop/price/danawa.old.php b/shop/price/danawa.old.php
index 546101da1..00b100946 100644
--- a/shop/price/danawa.old.php
+++ b/shop/price/danawa.old.php
@@ -4,7 +4,7 @@
 */
 include_once('./_common.php');
 ?>
-<?
+<?php
 echo $_SERVER['HTTP_HOST'];
 
 // \n상품코드#대분류#소분류#상품명#상품URL#가격
diff --git a/shop/price/danawa.php b/shop/price/danawa.php
index e51cffb82..2f127c08d 100644
--- a/shop/price/danawa.php
+++ b/shop/price/danawa.php
@@ -16,7 +16,7 @@ else
     $delivery = (int)$tmp[0];
 }
 ?>
-<?
+<?php
 // 상품ID^카테고리^상품명^제조사^이미지URL^상품URL^가격^적립금^할인쿠폰^무이자할부^사은품^모델명^추가정보^출시일^배송료
 $str = "";
 $sql = " select * from {$g4['shop_item_table']}
diff --git a/shop/price/daum.php b/shop/price/daum.php
index 10a1a361e..8375e9149 100644
--- a/shop/price/daum.php
+++ b/shop/price/daum.php
@@ -1,4 +1,4 @@
-<?
+<?php
 include_once('./_common.php');
 
 header("Content-Type: text/html; charset=utf-8");
diff --git a/shop/price/enuri.old.php b/shop/price/enuri.old.php
index 4747ba027..04ed53f61 100644
--- a/shop/price/enuri.old.php
+++ b/shop/price/enuri.old.php
@@ -71,7 +71,7 @@ th,td		{font-family:굴림; font-size:10pt ; height:15pt}
 </head>
 <body>
 
-<p align=center>상품수 : <?=number_format($total_count)?> 개
+<p align=center>상품수 : <?php echo number_format($total_count); ?> 개
 
 <table border="0" cellspacing="1" cellpadding="5" bgcolor="black" width="90%" align='center'>
 <tr bgcolor="#ededed">
@@ -80,7 +80,7 @@ th,td		{font-family:굴림; font-size:10pt ; height:15pt}
     <th>가격</th>
     <th>재고유무</th>
 </tr>
-<?
+<?php
 // 전체 페이지 계산
 $total_page  = ceil($total_count / $page_rows);
 // 페이지가 없으면 첫 페이지 (1 페이지)
@@ -122,7 +122,7 @@ for ($i=0; $row=mysql_fetch_array($result); $i++)
 </table>
 
 <p align=center>
-<?=paging(1000, $page, $total_page, "./enuri.php?ca_id=$caid&page=");?>
+<?php echo paging(1000, $page, $total_page, "./enuri.php?ca_id=$caid&page="); ?>
 
 </body>
 </html>
\ No newline at end of file
diff --git a/shop/price/enuri.php b/shop/price/enuri.php
index 13c8e90fb..afe133a0d 100644
--- a/shop/price/enuri.php
+++ b/shop/price/enuri.php
@@ -71,7 +71,7 @@ th,td		{font-family:굴림; font-size:10pt ; height:15pt}
 </head>
 <body>
 
-<p align=center>상품수 : <?=number_format($total_count)?> 개
+<p align=center>상품수 : <?php echo number_format($total_count); ?> 개
 
 <table border="0" cellspacing="1" cellpadding="5" bgcolor="black" width="90%" align='center'>
 <tr bgcolor="#ededed" align=center>
@@ -86,7 +86,7 @@ th,td		{font-family:굴림; font-size:10pt ; height:15pt}
     <td>제조사</td>
     <td>상품코드</td>
 </tr>
-<?
+<?php
 // 전체 페이지 계산
 $total_page  = ceil($total_count / $page_rows);
 // 페이지가 없으면 첫 페이지 (1 페이지)
@@ -139,7 +139,7 @@ for ($i=0; $row=mysql_fetch_array($result); $i++)
 </table>
 
 <p align=center>
-<?=paging(1000, $page, $total_page, "./enuri.php?ca_id=$caid&page=");?>
+<?php echo paging(1000, $page, $total_page, "./enuri.php?ca_id=$caid&page="); ?>
 
 </body>
 </html>
\ No newline at end of file
diff --git a/shop/price/enuri_list.php b/shop/price/enuri_list.php
index 428de215c..95ef15e8e 100644
--- a/shop/price/enuri_list.php
+++ b/shop/price/enuri_list.php
@@ -1,4 +1,4 @@
-<?PHP
+<?php
 /*
 **  가격비교사이트 에누리 분류페이지
 */
@@ -30,7 +30,7 @@ th,td		{font-family:굴림; font-size:10pt ; height:15pt}
 	</tr>
     <tr bgcolor="white">
 
-<?PHP
+<?php
 $url = 'http://' . $_SERVER['HTTP_HOST'] . dirname($_SERVER['PHP_SELF']);
 
 $sql =" SELECT LENGTH(ca_id)=2 AS cnt, ca_id
diff --git a/shop/price/mymargin.php b/shop/price/mymargin.php
index 8901260a6..9af058ab1 100644
--- a/shop/price/mymargin.php
+++ b/shop/price/mymargin.php
@@ -78,7 +78,7 @@ body, td {font-family:굴림; font-size:10pt;}
     <td>제조사</td>
     <td>이미지</td>
 </tr>
-<?
+<?php
 // 전체 페이지 계산
 $total_page  = ceil($total_count / $page_rows);
 // 페이지가 없으면 첫 페이지 (1 페이지)
@@ -124,7 +124,7 @@ for ($i=0; $row=mysql_fetch_array($result); $i++)
 }
 ?>
 <tr>
-    <td colspan=7><?=paging(1000, $page, $total_page, "./mymargin.php?page=");?> &nbsp;</td>
+    <td colspan=7><?php echo paging(1000, $page, $total_page, "./mymargin.php?page="); ?> &nbsp;</td>
 </tr>
 </table>
 
diff --git a/shop/price/naver.php b/shop/price/naver.php
index f28179d94..b25434510 100644
--- a/shop/price/naver.php
+++ b/shop/price/naver.php
@@ -1,4 +1,4 @@
-<?
+<?php
 include_once('./_common.php');
 
 ob_start();
diff --git a/shop/price/naver_new.php b/shop/price/naver_new.php
index cc5c9f8b1..c5ab7bcb4 100644
--- a/shop/price/naver_new.php
+++ b/shop/price/naver_new.php
@@ -1,4 +1,4 @@
-<?
+<?php
 include_once('./_common.php');
 
 ob_start();
diff --git a/shop/price/naver_new_summary.php b/shop/price/naver_new_summary.php
index 65b69fd48..f548a7e5f 100644
--- a/shop/price/naver_new_summary.php
+++ b/shop/price/naver_new_summary.php
@@ -1,4 +1,4 @@
-<?
+<?php
 include_once('./_common.php');
 
 ob_start();
diff --git a/shop/price/naver_summary.php b/shop/price/naver_summary.php
index 812fae49f..b07c6617a 100644
--- a/shop/price/naver_summary.php
+++ b/shop/price/naver_summary.php
@@ -1,4 +1,4 @@
-<?
+<?php
 include_once('./_common.php');
 
 ob_start();
diff --git a/shop/price/omi_ufo.php b/shop/price/omi_ufo.php
index 4c61b839d..6e9e68bdf 100644
--- a/shop/price/omi_ufo.php
+++ b/shop/price/omi_ufo.php
@@ -12,7 +12,7 @@ include_once('./_common.php');
 <meta http-equiv="Pragma" content="no-cache"/>
 </head>
 <body>
-<?
+<?php
 // <p>상품번호^대분류^중분류^소분류^제조사^모델명^상품Url^가격
 $str = "";
 $sql = " select * from {$g4['shop_item_table']}
diff --git a/shop/price/shopbinder.php b/shop/price/shopbinder.php
index 101e75ad9..facca0da3 100644
--- a/shop/price/shopbinder.php
+++ b/shop/price/shopbinder.php
@@ -68,7 +68,7 @@ body, td {font-family:굴림; font-size:9pt;}
     <td width="80">할인쿠폰</td>
     <td width="80">제조년월</td>
 </tr>
-<?
+<?php
 // 전체 페이지 계산
 $total_page  = ceil($total_count / $page_rows);
 // 페이지가 없으면 첫 페이지 (1 페이지)
@@ -124,7 +124,7 @@ for ($i=0; $row=mysql_fetch_array($result); $i++)
 </table>
 <DIV>
 <p align=center>
-<?=paging($page_rows, $page, $total_page, "./shopbinder.php?page=");?>
+<?php echo paging($page_rows, $page, $total_page, "./shopbinder.php?page="); ?>
 </DIV>
 </body>
 </html>
\ No newline at end of file
diff --git a/shop/price/yavis.php b/shop/price/yavis.php
index fb87816f9..1106fdbe5 100644
--- a/shop/price/yavis.php
+++ b/shop/price/yavis.php
@@ -80,7 +80,7 @@ body, td {font-family:굴림; font-size:10pt;}
     <td>모델명</td>
     <td>상품코드</td>
 </tr>
-<?
+<?php
 // 전체 페이지 계산
 $total_page  = ceil($total_count / $page_rows);
 // 페이지가 없으면 첫 페이지 (1 페이지)
@@ -127,7 +127,7 @@ for ($i=0; $row=mysql_fetch_array($result); $i++)
 ?>
 </table>
 
-<p>총 <?=$total_count?>개 &nbsp;<?=paging(1000, $page, $total_page, "./yavis.php?page=");?>
+<p>총 <?php echo $total_count; ?>개 &nbsp;<?php echo paging(1000, $page, $total_page, "./yavis.php?page="); ?>
 
 </body>
 </html>
\ No newline at end of file
diff --git a/skin/member/basic/register_form.skin.php b/skin/member/basic/register_form.skin.php
index 6948f4b65..0abf94bdf 100644
--- a/skin/member/basic/register_form.skin.php
+++ b/skin/member/basic/register_form.skin.php
@@ -214,7 +214,7 @@ if (!defined('_GNUBOARD_')) exit; // 개별 페이지 접근 불가
 <?php if ($w == "" && $config['cf_use_recommend']) {  ?>
 <tr>
     <th scope="row"><label for="reg_mb_recommend">추천인아이디</label></th>
-    <td><input type="text" name="mb_recommend" id="reg_mb_recommend" class="frm_input"></td>
+    <td><input type="text" name="mb_recommend" id="reg_mb_recommend" class="frm_input" required></td>
 </tr>
 <?php }  ?>