Hello, I have a problem with my walkman mp3 player NWZ-E436F. It does not charge when connected to PC running windows7. After it is connected, it shows the sign of charging until the computer recognises it and the window pops up. After that is says full, but when I disconnect it, the battery sign flashes showing it's low. What can I do? If the win7 is the problem, and I don't have xp or vista, what is the solution? The battery must be good, because it's far from the 500 charges it is said to be suitable for (I've charged it a hundred time, maximum).
Thank you for your help in advance!