I have a Logitech mouse and keyboard that's about a year old. All of a sudden my mouse cursor will move by itself while hovering? I have gone into control panel and checked any adjustments but to no avail. Thanks:)

What do you mean by hovering?

Are there several computers with wireless mouses in your house? It can occur that they send radio signals to both receivers in your computer.

The mouse should have a connect button on the bottom of it and also one on the receiver, press them both at the same time to reconnect them.

Also it may be a sign that the batteries are starting to die, replace them, try the reconnect thing above and see how it works after that.

This also sometimes happens if you are using the mouse on a highly patterned surface as the "beam" doesn't reflect correctly.