On a MacBook Pro, official SxS card in ExpressCard slot is seen OK by Mac OS. However on same machine running Boot Camp Windows 7, it is not seen.SxS drivers have been installed in both cases (OS X & W7). For W7 I tried a couple of versions, including the one from SXS Drivers, stated as “Updated for Windows 7”. The webpage also says “This OS must be factory-installed”, so I wonder what special things they do at the factory!I see at an apple forum some comments (at [http://discussions.apple.com/thread.jspa?threadID=2306364&tstart=0]) that “there is still no ExpressCard support in release 3.1 (of Boot Camp)” and “At the moment I’m aware of exactly zero Firewire ExpressCards that work in Windows 7 on Boot Camp”. Not familiar with this territory – maybe implies that the Sony drivers are not sufficient?Posted my problem at DvInfo: [http://www.dvinfo.net/forum/sony-xdcam-ex-cinealta/477958-mbp-boot-camp-w7-cant-see-sxs-osx-can.html]. Response confirms Apple not only do not support ExpressCard (EC) under Boot Camp on a MacBook Pro, they may never do so, given that the new model lacks any EC slot.