Dell optical mouse problem

[Mouse Problem]

I have a new dell optical mouse. It was working great till yesterday, but stopped working all of a sudden. The USB still detects the mouse, and the buttons on the mouse still work perfectly, but the optical sensor won't even light up and hence the cursor wouldn't move. Anything I could try to do?

[ApPy10]

First of all have you tried to go to device manager, mouse, properties and if there's a tab for power management, make sure that "allow this device to bring the computer out of standby" is not checked. While you are at it, go to power management and make sure that turning off the pc actually turns it off, and doesn't go to standby.

[Mouse Problem]

I'm using windows 7 and I'm not used to it that much.. it doesn't seem to have a Power tab. It has : General, Driver, and Detail. There is a section called "Power Data" under the "Detail" tab, but you can't arrange anything from there