Thanks Patrick,
I found that last weekend. I attempted a rollback, but I may have gotten the wrong driver for my card (amd-catalyst-omega-14.12-with-dotnet45-win8.1-64bit). I don't know. It didn't work, so I went back to the latest beta available (15.201.1151.1004-150929a-294965E-ATI). I can wait a little while. No hurry.