Repairing a computer mouse

[electricviolin]

I have a computer mouse I am trying to repair. It uses some strange IC that says "A2636G3" on it. Here is the datasheet: http://www.teleic.com/pdf/om02-spec040210.pdf
Anyway, when I plug it into my computer, I get a message that says windows cannot recognize device blah blah blah
It also has some leds on it - when I plug it in, one of the leds breifly flashes. The led for the actual optical functionality never turns on. Any thoughts?

[senso]

Broken USB cable, my mouse does that every year, just grab a "new" usb cable, cut one end and solder it to the mouse pcb.

[electricviolin]

Yeah, that seems like my first course of action. I connected my arduino to my laptop and just used the ground from there and connected that to the solder blob labeled ground (it really was a blob). It may just be a bad solder joint or something, but the mouse powered up then. My computer still didn't recognize it, but maybe once I replace the whole cable it will work again.

[electr_peter]

Before changing the cable, check all solder joints on the mouse PCB. I had a mouse with intermittent problems because of poor quality soldering - few touches with soldering iron sorted it out.