EGOSYS WAVETERMINAL U2A - USB DIGITAL/ANALOG INTERFACE - USB NOT WORKING

Description

EGO-SYS Waveterminal U2A USB digital/analog interface.  Can't get the USB side to work.  Analog side works fine.
Key notes from manufacturer:
This versatile USB interface is not only affordable, it is extremly portable (9 x 9 cm). Its multiple features make the U2A a studio pocketknife for desktop music production. The U2A offers 3 stereo input options (coaxial, optical, and analog) that you can select one at a time while the output signal is available on all 3 output formats at the same time. This feature can make the U2A act as a signal converter between coaxial & optical audio. The analog I/Os of the U2A are supported with ultra-wide range 24-bit AD/DA converters, and unbalanced 1/4" phone jack connections. U2A supports 3 different sampling rates (32, 44.1, 48K) with a real-time hardware sample rate converter.
U2A is compatible with Microsoft Windows 98SE, ME, 2000 and Windows XP, providing WDM drivers including support for MME and DirectSound. It also includes ASIO 2.0 support. Macintosh ASIO (Mac OS 9) and CoreAudio (Mac OS X) support is provided as well.
Features
16-bit playback & record resolution
gold-tipped S/PDIF Coaxial & Optical digital I/O
24-bit, high-quality, stereo A/D, D/A converters: 100dB (A/D), 110dB (D/A) Dynamic Range
Signal to Noise ratio (D/A): 110dB
-10dBv UnBalanced 1/4" phone jack
simultaneous audio output through both analog and S/PDIF for easy-mix monitoring
internal digital mixer for input monitoring
32, 44.1 and 48K sampling rates supported
real-time hardware Sample Rate Converter
installation: no "IRQs" or "DMAs" to set, no I/O addresses to configure
connects externally: no computer surgery
extreme portability (9 x 9cm)
includes convenient 2-meter USB cable
Microsoft Windows 98SE/ME/2000/XP/Vista/7 MME & DirectSound Driver, ASIO 2.0 support
Macintosh Mac OS 9 ASIO driver and Sound Manager drivers available
Macintosh Mac OS X CoreAudio support