diff -ru typo3_src-4.5.0.orig/typo3/sysext/cms/layout/wizard_backend_layout.php typo3_src-4.5.0.new/typo3/sysext/cms/layout/wizard_backend_layout.php
--- typo3_src-4.5.0.orig/typo3/sysext/cms/layout/wizard_backend_layout.php	2011-01-26 20:35:59.000000000 +0100
+++ typo3_src-4.5.0.new/typo3/sysext/cms/layout/wizard_backend_layout.php	2011-02-15 15:47:22.000000000 +0100
@@ -204,7 +204,7 @@
 
 
 		$this->doc->styleSheetFile_post = TYPO3_MOD_PATH . 'res/grideditor.css';
-		$this->doc->styleSheetFile2 = 'sysext/t3skin/stylesheets/extjs/xtheme-t3skin.css';
+		$this->doc->styleSheetFile2 = 'sysext/t3skin/extjs/xtheme-t3skin.css';
 	}
 
 	/**