Epson FAX Utility

Hello!

I've got a Mac Pro with 10.8.1 installed and a MF printer from Epson, the PX820FWD that worked flawlessly with Snow Leopard. Since I upgraded to mountain Lion and installed the Printer Update, I'm no longer able to add the FAX driver to the Printer panel(the printer driver works as usual), and consequently I cannot use the supplied Epson FAX Utility to manage faxes. The printer is listed under the Epson website as full Mountain Lion compliant, even in its FAX capability.

Any suggestion?