Well initially when I put the card in, Windows 7 installed its own drivers
, and it was successful. When the playready error occurred, I went to the manufacturer's website and got their drivers, still no joy. I finally gave up, put my old card backing, and rolled back my system. Off topic a bit, I installed the Wintv app, and it worked fine, but i did not like having to get out of mce to launch media browser.