I have 2 MX3 mice - one at home and one at the office. I am at the office and opening this app because my scroll wheel is not working. I scroll and nothing happens. I opened up this app - it shows 2 mice and both are "inactive". I don't see any way of making them active. I go into blue tooth settings and my office mouse is there. Is there something I need to do in order to get this all working?