Hi, I have installed Mustek CD / driver. Then plugged in the camera and that was it. It did not ask me to do anything else. And I did turn on the cam - the on light turned blue, although nothing on the display. BTW, I can not turn on the cam / blue light when it is off my PC. Don't know if the battery should be replaced. I have taken like 3 or 4 pictures since I got the cam - about a year ago. Installed the CD only now. Please let me know how I can use the camera. Thank you.