I have: HP Envy computer, Windows 10, StudioOne 2 Pro, and two PreSonus interfaces: AudioBoxUSB and 1818VSL. On my other computer (HP Pavilion), when I select StudioOne > Option > for audio I can choose from (1) Windows Audio, or either of my two interfaces, (2) AudioBox or (3) 1818VSL. Even the graphic icon for each shows the correct little picture of either device. On my new computer however, only Windows Audio and the AudioBox are available for selection. The 1818 VSL does not show up as a selection. The little picture is of the two-channel AudioBoxUSB only. Operationally, if I select this AudioBox, and use my 1818 VSL, I can get all 8 input channels to work, everything seems to work, but the buffer settings are not correct. I have to set the buffer dangerously low to have no latency. I have tried uninstalling and reinstalling the 1818 VSL drivers dozens of times. I have tried using the legacy AudioBox 1818VSL v1.3 and even v1.2 software AND the newest Universal Control 188.8.131.52355 software. But no matter what, StudioOne only sees one interface - the two-channel Audiobox USB device. For what it's worth, Universal Control sees both devices - even shows the correct graphic icon for each. But when I open Studio One, it just says "Windows Audio" or "AudioBox" for audio interface options. How do I get StudioOne to recognize that the 1818VSL is available?