Control Panel shows "disabled" after reconnecting the device
The control panel of your USB audio interface shows "disabled" in
the header and the controls (faders, buttons) are gray and cannot be used, even
though the audio interface is connected to the USB port of your computer and
the driver is installed.
This happens typically under Windows XP if you have connected the USB audio
interface to a different USB port than the one you have used when the driver
was installed. Windows XP remembers the USB port for each device and the driver
only gets fully loaded when the device is connected to the same port. If you
connect it to a different port, typically the standard USB audio driver from
Windows gets loaded, which means that the control panel will not work and show
"disabled". To avoid this, make sure to always connect the USB audio
interface to the same USB port. If you want to use it on a different USB port,
please reinstall the driver.