Roland 8.1 driver is up for UA-1g at least
Message just received from Roland
Hello Frederick,
The Windows 8.1 driver just got posted on our corporate headquarters website (Roland Japan). We will be posting the driver on our U.S. website today but here's the links in the meantime!
http://www.roland.com/support/article/?q=downloads&p=UA-1G&id=62483090 Fred