The problem lies in that this UX 1 Toneport has completely been a pain in the neck for anyone that owns one. Line 6 likes to blame OS devs, and OS devs like to blame Line 6. The fact of the matter is, I paid for this piece of hardware a while ago and it has done nothing but fail, fart and destroy every computer I hook it up to.
I suggest you go get a different audio interface.
No offence Line 6, but you've done nothing but cause me grief with this piece of hardware and you've done NOTHING to help fix the problem. I am so angry with you.