I am trying to install a pci sound card into a netfifnity 5500 m10. The card is recognised by XP pro but the system hangs when the drivers are loaded. I had the same problem under win2k. I have installed other pci cards into the system they are fine and work well(tv card, video card), but unable to install sound. I have tried different makes of card but all ahve the same problem. What am I doing wrong?