diff --git a/components/personAdmin.php b/components/personAdmin.php
index fbc41dd..a808d13 100644
--- a/components/personAdmin.php
+++ b/components/personAdmin.php
@@ -12,9 +12,7 @@ ob_start ('ob_gzhandler');
 
 if (! $cache->check (60))
 {
-	sleep (10);
 	$personAdmin->show ();
-
 	$cache->update ();
 }
 else
@@ -22,6 +20,11 @@ else
 	print "<p>[kein update]<p>";
 }
 
+print "<pre>";
+var_dump (get_included_files ());
+var_dump (get_required_files ());
+print "</pre>";
+
 ob_flush ();
 
 ?>
diff --git a/config.php b/config.php
index d163e20..d029c25 100644
--- a/config.php
+++ b/config.php
@@ -16,17 +16,15 @@ switch ($_SERVER["HTTP_HOST"])
 {
 	// Georgs Testumgebung
 	case 'bilder-workingcopy':
-		define ('BASEURL', "http://". $_SERVER['SERVER_NAME'] . "/");
-		define ('BASESURL', "https://". $_SERVER['SERVER_NAME'] . "/");
+		define ('URLPATH', '/');
 		break;
 
 	// Evolver
 	default:
-		define ('BASEURL',
-			"http://" . $_SERVER["HTTP_HOST"] . "/~georg/bilder/");
-		define ('BASESURL',
-			"https://" . $_SERVER["HTTP_HOST"] . "/~georg/bilder/");
+		define ('URLPATH', '/~georg/bilder/');
 }
+define ('BASEURL', "http://" . $_SERVER["HTTP_HOST"] . URLPATH);
+define ('BASESURL', "https://" . $_SERVER["HTTP_HOST"] . URLPATH);
 
 define ('IMGURL',   BASEURL . 'img/');
 define ('LIBURL',   BASEURL . 'libs/');
diff --git a/libs/c_cache.php b/libs/c_cache.php
index 17dcb96..c9697dd 100644
--- a/libs/c_cache.php
+++ b/libs/c_cache.php
@@ -6,6 +6,7 @@ class c_cache
 {
 	private $lock;
 	private $cacheFile;
+	private $scriptChanged;
 
 	// generiere den Cache Filename aus dem
 	// 1. script Namen
@@ -72,16 +73,51 @@ class c_cache
 
 		$this->lock = NULL;
 		$this->cacheFile = $cacheDir . '/cache_' . $parmStr . '.html';
+
+		if (file_exists ($this->cacheFile))
+		{
+			if (filemtime ($this->cacheFile) < filemtime ($scriptFile))
+				$this->scriptChanged = TRUE;
+			else
+			{
+				$incFiles = array_unique (array_merge (
+					get_included_files (), get_required_files ()));
+
+				foreach ($incFiles as $incFile)
+				{
+					if (filemtime ($this->cacheFile) < filemtime ($incFile))
+					{
+						$this->scriptChanged = TRUE;
+						break;
+					}
+				}
+
+				$this->scriptChanged = FALSE;
+			}
+		}
 	}
 
 
 
 	function check ($interval=0)
 	{
+		$scriptFile = HOME . substr ($_SERVER['PHP_SELF'], strlen (URLPATH));
+
 		ob_start ();
 
+		if ($interval <= 0)
+		{
+			$this->lock = NULL;
+			return FALSE;
+		}
+
+		print "<pre>";
+		var_dump ($this->scriptChanged);
+		print "</pre>";
+
 		clearstatcache ();
-		if (file_exists ($this->cacheFile) &&
+		if (! $this->scriptChanged &&
+				file_exists ($this->cacheFile) &&
 				time () - filemtime ($this->cacheFile) < $interval)
 		{
 			readfile ($this->cacheFile);
@@ -109,9 +145,12 @@ class c_cache
 	function update ()
 	{
 		$page = ob_get_flush ();
-		file_put_contents ($this->cacheFile, $page);
 
-		releaseLock ($this->lock);
+		if ($this->lock !== NULL)
+		{
+			file_put_contents ($this->cacheFile, $page);
+			releaseLock ($this->lock);
+		}
 	}
 };