Smush It not working since 3.5 uprgrade

Hello;

The newly designed media function of WordPress 3.5 does not take Smush.it into consideration any longer. Regardless whether you uninstall and then reinstall Smush.it, files can only be shrunk via manual mode.

That’s a real problem when dealing with pictures and images all day long.

Please advice. Is there another image shrinking plugin that works ‘automatically’ with WordPress 3.5?

Thanks

Lode