Index: typo3/sysext/install/mod/class.tx_install.php
===================================================================
--- typo3/sysext/install/mod/class.tx_install.php	(Revision 7539)
+++ typo3/sysext/install/mod/class.tx_install.php	(Arbeitskopie)
@@ -4141,7 +4141,7 @@
 		}
 
 			// try, print truetype font:
-		$im = @imagecreate(300, 50);
+		$im = @imagecreatetruecolor(300, 50);
 		$background_color = imagecolorallocate($im, 255, 255, 55);
 		$text_color = imagecolorallocate($im, 233, 14, 91);
 
@@ -4179,13 +4179,13 @@
 	 */
 
 	/**
-	 * Check if GD module is available by checking the function imagecreate
+	 * Check if GD module is available by checking the function imagecreatetruecolor
 	 *
 	 * @return boolean TRUE if GD is available
 	 */
 	function isGD() {
-		if (function_exists('imagecreate')) {
-			if (@imagecreate(50, 100)) {
+		if (function_exists('imagecreatetruecolor')) {
+			if (@imagecreatetruecolor(50, 100)) {
 				return 1;
 			}
 		}