I have never had 1 single issue with this mouse. I ordered this mouse and the Microsoft wireless keyboard 3000 and both look great on my desk. I have never come accross any interference issues when using this and the battery has never even ran out on me after 6months, i have heard it can even last up to 13months maybe even longer on 2 AA Batteries. The mouse comes with 2 AA batteries, and they are not cheap batteries, they are Duracell. After unpacking the mouse, i just put in the 2 Duracell AA Batteries included, put in the USB stick in the USB port on my computer and it was working straight away, no software to install. However an installation disk is included if you want to tweak around abit. I have tested this mouse on many surfaces, such as Wood, Carpet, My bed covers, kitchen table and the mouse has worked 100% on all.