USB port when I switch mp3 on, I can see all menu, settings, stopwatch is working.... But when I switched it to USB port, I heard not one audio signal (as always), but much more, and Philips software (I installed it from CD) show that player is not switched to computer. Windows XP write, hardware isn't recognized. What can I do?

SOURCE: software for mp3 player philips nike psa 220

the disk ???? then tell me wat comes up wen u turn it on like mpman for example