Can anyone help with the following problem My Acer laptop running Vista does not recognise my proline digital mp3 player when i plug it into the usb port. It recognises other flash drives when they are plugged into the same usb ports. When connected the backlight on the player illuminates but it is not to be found in device manager etc. It has worked previously and has music on it which still plays. Are the drivers onboard the device or will they be on the computers hard drive. Could the drivers be corrupted or lost. I am a novice and have limited knowledge to rectify problems but am willing to try.