HI,
Do you see a light come on on the bottom of the mouse when you turn it on? If not, you installed the battery backwards, you have a bad battery, or the mouse has a hardware failure.
- Did you try connecting the Mouse to a different Computer and check if it works?
- Was it working earlier?
Method 1: This problem is likely to be a lost connection. The connection between the mouse and the USB nano-receiver can be lost due to several reasons, including:
- Low batteries.
- Moving the USB nano-receiver from one USB port to another.
- Moving the USB nano-receiver to another computer.
- Plugging the USB nano-receiver into a USB hub or other unsupported device such as a KVM switch (your USB nano-receiver must be plugged directly into your computer)
- Using your cordless mouse on metal surfaces.
- Radio frequency (RF) interference of more powerful wireless devices such as:
- Wireless speakers
- Computer power supplies
- Monitors
- Cellular telephones
- Garage door openers
Eliminate any problem sources mentioned above that might be affecting your devices.
Method 2: Follow the instructions on the below link to fix Wireless mouse issues:
Troubleshoot response failures in wireless keyboard or mouse
http://support.microsoft.com/kb/838398
Install mouse and IntelliPoint software
http://support.microsoft.com/kb/258785