I've used my VI49 with Ableton for over a year now. In the last month or so the functionality of the switches has changed without using the editor. They were set to CC toggle (simple on/off). The first error that occured was that the toggle function stopped turning the channel "off." The switch would engage the channel but it would no longer actually toggle. This happened without benefit of using the Alesis editor. After much research and experimentation I was able to use the editor to get the toggle function to work but only as a "double-tap." That is, one must now press the switch twice to toggle "on" and twice again to toggle "off." This would be merely annoying if the switches light toggled at the same rate but no, it still changes with each press making it useless as an indicator of whether the track is engaged. I can find no one else having this problem on the web. Anyone have any Ideas? Thanks.