My Windows XP computer is not able to detect Canon PowerShot A570 camera. As per canon it is a kind of usb device. When you connect it, the internal memory is accessible in the form of usb drive in which you can directly copy paste data. But rightnow XP do not respond when I connect it. I checked in Device Manager also. There is a single device listed as unknown and I am sure it is the camera only. How to make this thing work in XP.