A lot of people seem to have had trouble with these cards. Have a look at this post for some starting-points. However please note as it says at the top this is for Salix 13.1 so it won't serve as a how-to. It may be worth searching the forums and wiki some more in case there's anything for 13.37.
The following is up to date for 13.37:
http://www.salixos.org/wiki/index.php/H ... less_cards