Hi! Looks that some people have trouble with configuration of more than one GUS PnP soundcards. Here are some modified EEPROM images to make things work properly. For EEPROM programming remove all other PnP cards and leave in system only one GUS PnP soundcard. For each GUS PnP soundcard use map file with different names (linux?.map & linuxX?.map). Files linuxX?.map have very different serial #, so they should be used if files linux?.map doesn't work properly (conflicts with other PnP devices). I checked this configuration under Windows NT, DOS & Linux (isapnptools & Tom Lees PnP driver)... Jaroslav Kysela