I have an M325S that uses unifying receiver and a waves key that uses bluetooth. They seem to interfere with each other. the logi options seems to help. Why do I need two apps to run a mouse and keyboard? Previously I had a unifying keyboard and mouse and they worked just fine. this seems like layer on layer of apps. While I like and have used logitech mice and keyboards for many years, I am looking for other hardware that is not such a pain in the neck to use. Thanks