provides version 1.0.1 which also states win 8.1
I just successfully installed UA-1G with the 1.0.1 driver which worked flawlessly. I left the "Advanced Driver"in the on position and that worked. I also can access UA-1G driver settings without getting the below popup.
Thanks Roland/Cakewalk for the updated Driver!!
++++ Obsolete info below since Roland provided 1.0.1 driver +++++++