Dear all, Roland UA-100 plugged into PC, usbview detects interface. aplay -l doesn't report any knowledge of the device. I believe I have loaded the appropriate modules, snd-usb-audio but the system resolutely refuses to make music as it has before. I would include the appropriate modules.conf files to show but this E-mailing machine and the linux box are not connected and I feel cross reading would be a little error strewn. Can anyone outline a procedure for checking at which point a problem might occur and, if possible, a list of command line utilities that can reveal precisely what components are loaded. Is it possible to load modules incompletly such that a component identifies it's presence but isn't actual functioning. If this is so how does one check the dependancies? I understand that amix and alsamixer won't recognise the presence of a USB connected audio interface, is this the case? Any help appreciated. Chris Lyon