problems installing gd2.dll under WinXP

Hello, I cannot get the gd2.dll to work on my system. The rest of PHP already works fine. - Windows XP - Apache 2.0.46 - PHP 4.3.2 - php.ini IS found and used (as seen in php.info: Configuration File (php.ini) Path = C:\WINDOWS\php.ini) - entered the right extension_dir in php.ini WITH ending '\' - colon WAS removed in line 'extension=php_gd2.dll' - There IS a php_gd2.dll in C:\.......\extensions - Upon (re)starting the Apache, I get no error whatsoever. Still: => any .php script using GD methods brings errors like " Fatal error: Call to undefined function: imagegif() " Please help! Andy