Hi all, I bought a pair of Logitech Z-5500 digital speakers today and have had no problem whatsoever getting them to work via an optical cable in OSX. Of course, I have no been so lucky with Windows Vista running under Bootcamp... I installed the Bootcamp drivers for Vista from the Leopard disk and it installed Realtek HD Audio Manager. Audio works fine through the internal iMac speakers with "Speakers" tab enabled as default and the optical cable unplugged, but setting "Digital Output" tab as default and enabling S/PDIF-In to S/PDIF-Out pass through mode and plugging in the optical cable I get no audio through the Logitech speakers! Can someone help me please?