diff --git a/adm/member_form.php b/adm/member_form.php
index 2b95e6581..a5b249d35 100644
--- a/adm/member_form.php
+++ b/adm/member_form.php
@@ -243,7 +243,8 @@ add_javascript(G5_POSTCODE_JS, 0);    //다음 주소 js
             $icon_file = G5_DATA_PATH.'/member/'.$mb_dir.'/'.get_mb_icon_name($mb['mb_id']).'.gif';
             if (file_exists($icon_file)) {
                 $icon_url = str_replace(G5_DATA_PATH, G5_DATA_URL, $icon_file);
-                echo '<img src="'.$icon_url.'" alt="">';
+                $icon_filemtile = (defined('G5_USE_MEMBER_IMAGE_FILETIME') && G5_USE_MEMBER_IMAGE_FILETIME) ? '?'.filemtime($icon_file) : '';
+                echo '<img src="'.$icon_url.$icon_filemtile.'" alt="">';
                 echo '<input type="checkbox" id="del_mb_icon" name="del_mb_icon" value="1">삭제';
             }
             ?>
@@ -258,8 +259,7 @@ add_javascript(G5_POSTCODE_JS, 0);    //다음 주소 js
             $mb_dir = substr($mb['mb_id'],0,2);
             $icon_file = G5_DATA_PATH.'/member_image/'.$mb_dir.'/'.get_mb_icon_name($mb['mb_id']).'.gif';
             if (file_exists($icon_file)) {
-                $icon_url = str_replace(G5_DATA_PATH, G5_DATA_URL, $icon_file);
-                echo '<img src="'.$icon_url.'" alt="">';
+                echo get_member_profile_img($mb['mb_id']);
                 echo '<input type="checkbox" id="del_mb_img" name="del_mb_img" value="1">삭제';
             }
             ?>
diff --git a/bbs/register_form.php b/bbs/register_form.php
index d72804dd2..321e4dea8 100644
--- a/bbs/register_form.php
+++ b/bbs/register_form.php
@@ -131,11 +131,13 @@ include_once('./_head.php');
 
 // 회원아이콘 경로
 $mb_icon_path = G5_DATA_PATH.'/member/'.substr($member['mb_id'],0,2).'/'.get_mb_icon_name($member['mb_id']).'.gif';
-$mb_icon_url  = G5_DATA_URL.'/member/'.substr($member['mb_id'],0,2).'/'.get_mb_icon_name($member['mb_id']).'.gif';
+$mb_icon_filemtile = (defined('G5_USE_MEMBER_IMAGE_FILETIME') && G5_USE_MEMBER_IMAGE_FILETIME && file_exists($mb_icon_path)) ? '?'.filemtime($mb_icon_path) : '';
+$mb_icon_url  = G5_DATA_URL.'/member/'.substr($member['mb_id'],0,2).'/'.get_mb_icon_name($member['mb_id']).'.gif'.$mb_icon_filemtile;
 
 // 회원이미지 경로
 $mb_img_path = G5_DATA_PATH.'/member_image/'.substr($member['mb_id'],0,2).'/'.get_mb_icon_name($member['mb_id']).'.gif';
-$mb_img_url  = G5_DATA_URL.'/member_image/'.substr($member['mb_id'],0,2).'/'.get_mb_icon_name($member['mb_id']).'.gif';
+$mb_img_filemtile = (defined('G5_USE_MEMBER_IMAGE_FILETIME') && G5_USE_MEMBER_IMAGE_FILETIME && file_exists($mb_img_path)) ? '?'.filemtime($mb_img_path) : '';
+$mb_img_url  = G5_DATA_URL.'/member_image/'.substr($member['mb_id'],0,2).'/'.get_mb_icon_name($member['mb_id']).'.gif'.$mb_img_filemtile;
 
 $register_action_url = G5_HTTPS_BBS_URL.'/register_form_update.php';
 $req_nick = !isset($member['mb_nick_date']) || (isset($member['mb_nick_date']) && $member['mb_nick_date'] <= date("Y-m-d", G5_SERVER_TIME - ($config['cf_nick_modify'] * 86400)));
diff --git a/extend/default.config.php b/extend/default.config.php
index 4a134a7a8..d655b148a 100644
--- a/extend/default.config.php
+++ b/extend/default.config.php
@@ -4,6 +4,8 @@ if (!defined('_GNUBOARD_')) exit; // 개별 페이지 접근 불가
 // 유저 사이드뷰에서 아이콘 지정 안했을시 기본 no 프로필 이미지
 define('G5_NO_PROFILE_IMG', '<span class="profile_img"><img src="'.G5_IMG_URL.'/no_profile.gif" alt="no_profile" width="'.$config['cf_member_icon_width'].'" height="'.$config['cf_member_icon_height'].'"></span>');
 
+define('G5_USE_MEMBER_IMAGE_FILETIME', TRUE);
+
 // 썸네일 처리 방식, 비율유지 하지 않고 썸네일을 생성하려면 주석을 풀고 값은 false 입력합니다. ( true 또는 주석으로 된 경우에는 비율 유지합니다. )
 //define('G5_USE_THUMB_RATIO', false);
 ?>
\ No newline at end of file
diff --git a/lib/common.lib.php b/lib/common.lib.php
index 77a4fa45f..5a6629d61 100644
--- a/lib/common.lib.php
+++ b/lib/common.lib.php
@@ -1313,9 +1313,10 @@ function get_sideview($mb_id, $name='', $email='', $homepage='')
             $icon_file = G5_DATA_PATH.'/member/'.$mb_dir.'/'.get_mb_icon_name($mb_id).'.gif';
 
             if (file_exists($icon_file)) {
+                $icon_filemtile = (defined('G5_USE_MEMBER_IMAGE_FILETIME') && G5_USE_MEMBER_IMAGE_FILETIME) ? '?'.filemtime($icon_file) : '';
                 $width = $config['cf_member_icon_width'];
                 $height = $config['cf_member_icon_height'];
-                $icon_file_url = G5_DATA_URL.'/member/'.$mb_dir.'/'.get_mb_icon_name($mb_id).'.gif';
+                $icon_file_url = G5_DATA_URL.'/member/'.$mb_dir.'/'.get_mb_icon_name($mb_id).'.gif'.$icon_filemtile;
                 $tmp_name .= '<span class="profile_img"><img src="'.$icon_file_url.'" width="'.$width.'" height="'.$height.'" alt=""></span>';
 
                 if ($config['cf_use_member_icon'] == 2) // 회원아이콘+이름
@@ -3611,6 +3612,9 @@ function get_member_profile_img($mb_id='', $width='', $height='', $alt='profile_
         } else {
             $member_img = G5_DATA_PATH.'/member_image/'.substr($mb_id,0,2).'/'.get_mb_icon_name($mb_id).'.gif';
             if (is_file($member_img)) {
+                if(defined('G5_USE_MEMBER_IMAGE_FILETIME') && G5_USE_MEMBER_IMAGE_FILETIME) {
+                    $member_img .= '?'.filemtime($member_img);
+                }
                 $member_cache[$mb_id] = $src = str_replace(G5_DATA_PATH, G5_DATA_URL, $member_img);
             }
         }
diff --git a/skin/member/basic/register_form.skin.php b/skin/member/basic/register_form.skin.php
index 72b2596e6..e2dc5fd5b 100644
--- a/skin/member/basic/register_form.skin.php
+++ b/skin/member/basic/register_form.skin.php
@@ -189,7 +189,7 @@ gif, jpg, png파일만 가능하며 용량 <?php echo number_format($config['cf_
 	                <?php if ($w == 'u' && file_exists($mb_icon_path)) {  ?>
 	                <img src="<?php echo $mb_icon_url ?>" alt="회원아이콘">
 	                <input type="checkbox" name="del_mb_icon" value="1" id="del_mb_icon">
-	                <label for="del_mb_icon">삭제</label>
+	                <label for="del_mb_icon" class="inline">삭제</label>
 	                <?php }  ?>
 	            
 	            </li>
@@ -208,7 +208,7 @@ gif, jpg, png파일만 가능하며 용량 <?php echo number_format($config['cf_
 	                <?php if ($w == 'u' && file_exists($mb_img_path)) {  ?>
 	                <img src="<?php echo $mb_img_url ?>" alt="회원이미지">
 	                <input type="checkbox" name="del_mb_img" value="1" id="del_mb_img">
-	                <label for="del_mb_img">삭제</label>
+	                <label for="del_mb_img" class="inline">삭제</label>
 	                <?php }  ?>
 	            
 	            </li>
diff --git a/skin/member/basic/style.css b/skin/member/basic/style.css
index efc404d34..97c3ff395 100644
--- a/skin/member/basic/style.css
+++ b/skin/member/basic/style.css
@@ -131,6 +131,7 @@
 .register_form_inner {background:#f7f7f7;border:1px solid #dde7e9;border-radius:3px}
 .register_form_inner ul {padding:20px}
 .register_form_inner label {display:block;margin-bottom:10px;line-height:24px}
+.register_form_inner label.inline {display:inline}
 
 #fregisterform #msg_certify {margin:5px 0 0;padding:5px;border:1px solid #dbecff;background:#eaf4ff;text-align:center}
 #fregisterform .frm_address {margin:5px 0 0}
diff --git a/theme/basic/skin/member/basic/register_form.skin.php b/theme/basic/skin/member/basic/register_form.skin.php
index cbd17aed0..d60d8c8f7 100644
--- a/theme/basic/skin/member/basic/register_form.skin.php
+++ b/theme/basic/skin/member/basic/register_form.skin.php
@@ -188,7 +188,7 @@ gif, jpg, png파일만 가능하며 용량 <?php echo number_format($config['cf_
 	                <?php if ($w == 'u' && file_exists($mb_icon_path)) {  ?>
 	                <img src="<?php echo $mb_icon_url ?>" alt="회원아이콘">
 	                <input type="checkbox" name="del_mb_icon" value="1" id="del_mb_icon">
-	                <label for="del_mb_icon">삭제</label>
+	                <label for="del_mb_icon" class="inline">삭제</label>
 	                <?php }  ?>
 	            
 	            </li>
@@ -207,7 +207,7 @@ gif, jpg, png파일만 가능하며 용량 <?php echo number_format($config['cf_
 	                <?php if ($w == 'u' && file_exists($mb_img_path)) {  ?>
 	                <img src="<?php echo $mb_img_url ?>" alt="회원이미지">
 	                <input type="checkbox" name="del_mb_img" value="1" id="del_mb_img">
-	                <label for="del_mb_img">삭제</label>
+	                <label for="del_mb_img" class="inline">삭제</label>
 	                <?php }  ?>
 	            
 	            </li>
diff --git a/theme/basic/skin/member/basic/style.css b/theme/basic/skin/member/basic/style.css
index e297c9b96..3574d7009 100644
--- a/theme/basic/skin/member/basic/style.css
+++ b/theme/basic/skin/member/basic/style.css
@@ -131,6 +131,7 @@
 .register_form_inner {background:#f7f7f7;border:1px solid #dde7e9;border-radius:3px}
 .register_form_inner ul {padding:20px}
 .register_form_inner label {display:block;margin-bottom:10px;line-height:24px}
+.register_form_inner label.inline {display:inline}
 
 #fregisterform #msg_certify {margin:5px 0 0;padding:5px;border:1px solid #dbecff;background:#eaf4ff;text-align:center}
 #fregisterform .frm_address {margin:5px 0 0}