If you are having trouble with shaky text in menus etc, and all round low performance with one of these cards
(following upgrade or purchase of an old card, etc...). I recommend the drivers available
here,
an OEM retailer. I would also recommend obtaining the region free utility available
here,
which 'corrects' the .dll check for DVD region. A word of caution the cifelli drivers although giving
superior playback, they disable output to the soundcard (sound is still played directly from decoder).