SYMPTOM: Edirol device does not appear as a valid device for Audio or MIDI input or output in software.

Tags: input,um-2,ua-700,pcr-m80,pcr-m50,pcr-m30,drivers,ua-1x,um-1,um-550,um-880,pcr-m1,sc-d70,sk-500,sc-8820,um-1x,m-100fx,sc-8850
Be sure your interface is turned on and connected to the USB port. The drivers may not be active in your software unless the Edirol Device is on and plugged in before opening your software application.