Cannot Play Back/Record - Edirol UM-1 Owner's Manual

Was the USB cable disconnected and re-connected while the UM-1 was being
used?
If the USB cable is disconnected and re-connected while the UM-1 is in use, it may no
longer operate correctly. If this occurs, exit all applications that are using the UM-1, and
disconnect/re-connect the USB cable of the UM-1.
On some computers, if the UM-1 is connected while Windows starts up, the USB
MIDI Driver will not be loaded correctly, and it will not be possible to use the
UM-1.
If this occurs, start up Windows before you connect the UM-1.

Cannot play back/record

Was the driver installed correctly?
Check the driver as described in "Check with the driver installed on the computer." (p. 34)
Did you make settings as described in "Before you begin" (p. 19) so that the
USB driver could be used?
The UM-1 cannot be used unless you make these settings. Refer to the sections on "Before
you use the UM-1 with the Windows Media Player" (p. 19) and "Before you use the UM-1
with an application."(p. 19)
Could you have entered standby or hibernate mode during playback or
recording?
If you entered standby or hibernate mode during playback or recording, it will no longer be
possible to play back or record from the sound module. Exit all currently playing or
recording applications, and disconnect/re-connect the USB cable of the UM-1.
During playback or recording, did you disconnect and re-connect the USB
cable?
If you disconnect and re-connect the USB cable during playback or recording, the UM-1 will
no longer be able to play back or record. Stop playback or recording, and then start
playback or recording once again. If you are still unable to play back or record, quit all
programs that are using the UM-1, then disconnect/re-connect the USB cable of the UM-1.
38