diff --git a/htdocs/config.sample.php b/htdocs/config.sample.php
index a6e33d2..8f82bbb 100644
--- a/htdocs/config.sample.php
+++ b/htdocs/config.sample.php
@@ -3,12 +3,12 @@
     /**
      * 資料庫類型
      */ 
-    define('DB_TYPE', "mysql"); // or mysql
+    define('DB_TYPE', 'mysql'); // or mysql
 
     /**
      * 資料庫位址
      */
-    define('DB_HOST', "localhost");
+    define('DB_HOST', 'localhost');
 
     /**
      * 資料庫連結埠
@@ -20,24 +20,24 @@
     /**
      * 資料庫連結帳號
      */
-    define('DB_USER', "user");
+    define('DB_USER', 'user');
 
     /**
      * 資料庫連結密碼
      */
-    define('DB_PASS', "passwd123");
+    define('DB_PASS', 'passwd123');
 
     /**
      * 資料庫名稱
      */
-    define('DB_NAME', "chu_elearning");
+    define('DB_NAME', 'UElearning');
 
     /**
      * 資料庫內資料表前綴字串
-     *
+     
      * 每一張表格名稱的起始字串，為了避開一些網頁空間只允許建立一個資料庫的限制。
      */
-    define('DB_PREFIX', "chu_");
+    define('DB_PREFIX', 'uel__');
 
 // 網站設定 ===================================================================
     /**
@@ -91,15 +91,14 @@
     /**
      * 網站根目錄
      */
-    define('UELEARNING_ROOT', __DIR__.'/');
+    define('UELEARNING_ROOT', __DIR__);
 
     /**
      * 內部函式庫根目錄
      */
-    define('UELEARNING_LIB_ROOT', UELEARNING_ROOT.'lib/');
+    define('UELEARNING_LIB_ROOT', __DIR__.'/lib');
 
     /**
      * 這份設定檔的路徑
      */ 
     define('UELEARNING_CONFIG_PATH', __FILE__);
-    
diff --git a/htdocs/lib/Database/DBAdmin.php b/htdocs/lib/Database/DBAdmin.php
index 1f7de8c..ca5bf50 100644
--- a/htdocs/lib/Database/DBAdmin.php
+++ b/htdocs/lib/Database/DBAdmin.php
@@ -7,8 +7,8 @@
 
 namespace UElearning\Database;
 
-require_once UELEARNING_LIB_ROOT.'Database/Database.php';
-require_once UELEARNING_LIB_ROOT.'Database/Exceptions.php';
+require_once UELEARNING_LIB_ROOT.'/Database/Database.php';
+require_once UELEARNING_LIB_ROOT.'/Database/Exceptions.php';
 
 /**
  * 資料庫整體管理
diff --git a/htdocs/lib/Database/DBUser.php b/htdocs/lib/Database/DBUser.php
index 9c1def8..1cfa80a 100644
--- a/htdocs/lib/Database/DBUser.php
+++ b/htdocs/lib/Database/DBUser.php
@@ -7,8 +7,8 @@
 
 namespace UElearning\Database;
 
-require_once UELEARNING_LIB_ROOT.'Database/Database.php';
-require_once UELEARNING_LIB_ROOT.'Database/Exceptions.php';
+require_once UELEARNING_LIB_ROOT.'/Database/Database.php';
+require_once UELEARNING_LIB_ROOT.'/Database/Exceptions.php';
 
 /**
  * 使用者帳號資料表
diff --git a/htdocs/lib/Database/Database.php b/htdocs/lib/Database/Database.php
index 6eff00c..f1bb2c7 100644
--- a/htdocs/lib/Database/Database.php
+++ b/htdocs/lib/Database/Database.php
@@ -8,8 +8,8 @@
 
 namespace UElearning\Database;
 
-require_once UELEARNING_LIB_ROOT.'Database/MySQLDB.php';
-require_once UELEARNING_LIB_ROOT.'Database/Exceptions.php';
+require_once UELEARNING_LIB_ROOT.'/Database/MySQLDB.php';
+require_once UELEARNING_LIB_ROOT.'/Database/Exceptions.php';
 use UElearning\Database\Exception;
 
 /**
diff --git a/tests/InstallTest.php b/tests/InstallTest.php
index 383899d..e0baafa 100644
--- a/tests/InstallTest.php
+++ b/tests/InstallTest.php
@@ -8,7 +8,7 @@
 namespace UElearning;
 
 require_once __DIR__.'/../htdocs/config.php';
-require_once UELEARNING_LIB_ROOT.'Database/DBAdmin.php';
+require_once UELEARNING_LIB_ROOT.'/Database/DBAdmin.php';
 
 class InstallTest extends \PHPUnit_Framework_TestCase
 {