Things do break. Removing the batteries is the same as using a switch. Since there is no switch, and it still won't work, get a new one.
Hi, all -
This is driving me NUTS! I have the Microsoft Wireless Laser Mouse 6000, which came with my keyboard. Everything was working fine for 6 months until the mouse died. Changed the batteries, nothing. The laser no longer lights up.
Went to Microsoft's troubleshooting, located an answer - "If the Wireless Notebook Optical Mouse no longer works or lights up, the Microswitch on the bottom is stuck in the "off" position. To resolve this issue, "unstick" the switch. Typically, pushing on the switch manually will "unstick" the switch."
So what's my problem? The only button on the bottom of the mouse is the Connect button. I've taken out the batteries and looked for the microswitch - no luck. I've pried off the plastic cover on top of the mouse as much as I can without breaking it - no switch.