Another downside to the included drivers/software for the VFD/Volume knob that comes with the ANTEC Fusion is that the volume knob will not work for SPDIF output in Vista. However, there is a fix! 

  1. Download this updated SMCA.dll
  2. Rename the existing SMCA.dll in C:\Program Files (x86)\ANTEC\VFD\ to SMCA.dll.old
  3. Copy the new SMCA.dll to C:\Program Files (x86)\ANTEC\VFD\
  4. Restart the ANTEC VFD software

If you’re using 32bit Vista the file will be in C:\Program Files\ANTEC\VFD\