As you may know, I am partial to Microsoft wireless laptop mouse models. I have had one for three years, ever since I bought a new laptop, and I have had NO issues with my Microsoft model 3000 wireless mouse. Let's look at the commonalities and the differences between the venerable Microsoft Wireless Notebook Optical Mouse 3000, and the newer models, Microsoft Wireless Mobile Mouse 4000, and the Microsoft 2.4 GHz Cordless / Wireless High Definition Laser Mouse 7000 with Tilt Wheel.

The common features of Microsoft mice

• High definition optical laser technology
• A handy, energy saving snap-in design

Microsoft Wireless Laptop Optical Mouse 3000

• Two way scroll - up and down
• Comfortable grip with the thin rubber coating
• High definition optical technology
• Testimonials of years of successful flawless operation

Microsoft Wireless Mobile Mouse 4000

• Includes BlueTrack Technology which will work on surfaces that the 3000 model might have difficulties with, sucha as granite counter tops, wooden surfaces, even on carpet.
• Includes 4 way scroll, and 4 custom buttons
• Battery indicator to show battery running on low
• Small sized transciever that you can safely leave in the USB port for transport, or snap into the bottom of the mouse

Microsoft Cordless / Wireless High Definition Laser Mouse 6000

• 4 way scrolling, left, right, up, down, for spreadsheets and web pages
• magnifier built in
• high definition laser optical technology built in

Microsoft 2.4 GHz Cordless / Wireless High Definition Laser Mouse 7000 with Tilt Wheel

• Similar functionality than Laser Mouse 6000, different ergonomic design

You can find these and a few other Microsoft wireless laptop mouse models at Amazon.