diff -ru typo3_src-4.2.0_SVN/typo3/sysext/cms/tslib/class.tslib_content.php typo3_src-4.2.0/typo3/sysext/cms/tslib/class.tslib_content.php
--- typo3_src-4.2.0_SVN/typo3/sysext/cms/tslib/class.tslib_content.php	Sun May 18 16:47:19 2008
+++ typo3_src-4.2.0/typo3/sysext/cms/tslib/class.tslib_content.php	Sun Jun  1 16:49:58 2008
@@ -4623,6 +4623,10 @@
 					$gifCreator->init();
 					$theImage='';
 					if ($GLOBALS['TYPO3_CONF_VARS']['GFX']['gdlib'])	{
+						if ($fileArray['alternativeTempPath'] && t3lib_div::inList($GLOBALS['TYPO3_CONF_VARS']['FE']['allowedTempPaths'],$fileArray['alternativeTempPath']))	{
+							$gifCreator->tempPath = $fileArray['alternativeTempPath'];
+							$GLOBALS['TT']->setTSlogMessage('Set alternativeTempPath: '.$fileArray['alternativeTempPath']);
+						}
 						$gifCreator->start($fileArray,$this->data);
 						$theImage = $gifCreator->gifBuild();
 					}