SD card reader no response - Latitude E5430

All of a sudden the SD Card Reader on E5430 laptop doesn't work  When I insert SD card nothing happens. Before, a window would pop up, or I could see the SD card in my computer.

No nothing happens and it doesn't show up under my computer.

Also, under device manager -> storage controllers, not there any more.

I believe it's a O2 Micro OZ600xxx card reader.  I tried installing driver, but still doesn't see SD Card when inserted.

Any idea if the SD Card reader is just dead? Or do I have a driver issue.  How to tell?

Windows 7 Professional 64bit

Thanks