I have been experimenting with an ES400S with RhoElements 220.127.116.11. Adding a handler for the onclick event, I noticed that the click event fails to fire frequently, and I have to push the button 2, 3, or even 4 times before getting a response. But even when the click event failed, the button was changing state when it was pressed. So I added handlers for onmousedown and onmouseup, and they appear to be firing consistently, whether or not the click event fires. Is there a problem with the click event or is there something I'm missing about how it is supposed to work?