Has anyone figured anything out on this issue yet? I am having the same problem. When I press or hold the fucntion key with f10 or f11 to control the volume it tends to continue incresasing or decreasing the volume, and if i am in a browser the window rapidly continues going between maximized and fullscreen. I can hold the FN to take off the lock, and I have to keep hitting f11 to get it to stop changing the window size. This is extreemly annoying if im just trying to quickly adjust my volume. I really like this keyboard, but may have to return it if this issue can't be fixed.