diff --git a/classes/Cookie.php b/classes/Cookie.php
index 8d358c6be..7da2ba990 100644
--- a/classes/Cookie.php
+++ b/classes/Cookie.php
@@ -270,7 +270,10 @@ class CookieCore
 			//printf("\$content = %s<br />", $content);
 			
 			/* Get cookie checksum */
-			$checksum = crc32($this->_salt.substr($content, 0, strrpos($content, '¤') + 2));
+			$tmpTab = explode('¤', $content);
+			array_pop($tmpTab);
+			$content_for_checksum = implode('¤', $tmpTab).'¤';
+			$checksum = crc32($this->_salt.$content_for_checksum);
 			//printf("\$checksum = %s<br />", $checksum);
 			
 			/* Unserialize cookie content */
diff --git a/img/logo.jpg b/img/logo.jpg
index 3ef612536..47c933e39 100644
Binary files a/img/logo.jpg and b/img/logo.jpg differ