FYI Tried this and it did not help..
in the admin/common/properties.php file, try changing:
PHP Code:
$GLOBALS['permissions'] = array(
'dir' => 0777,
'file' => 0666
);
to:
PHP Code:
$GLOBALS['permissions'] = array(
'dir' => 0755,
'file' => 0755
);
if you continue to have problems, please post back the text of the error message.