This started for me with the last update. I have all the right chipsets. Suddenly I get a bump/bump/sizzle one I open Cakewalk. This then continues no matter what. Even after I close it. Cakewalk is doing something to the firewire port. I have a Allen Heath Zed R16. Has worked great for over a year. Now once the upgrade ran, my DAW is useless. Have reinstalled drivers. I am going to purchase a new Firewire cable but all of this is not really the problem. When Cakewalk opens the midi device on the system, it is hosing something up. Click/Click/Sizzle. Frying bacon is very minimal compared to this sound.