I have to set my custom mouse moves in the mouse panel. I had to specifically download the microsoft intelli- control panel, which you would think was supposed to be on my computer already. If you've had to do the same, it is possible a computer restart could help it reconnect. If not, you may need to revisit your control panel and fix it manually. I've had to do that only once since I got this new machine, but never after every battery change. The one time was after a microsoft update.