I have connected mu Audiobox1818VSL to my new computer. On my computer, I can choose main out 1/2, 2/3,and so on. But if Ichoose line out 1/2, I connot choose 7/8. (I have main out speekers on 1/2 and headphones on 7/8).
On my old computer, it was only one choise, Audiobox. What can I do to use 1/2 and 7/8 at the same time?