campioni

well, i used the usb cord that came with the player and was working fine. then one day i used a different cord, and still worked as well. a few days later is when i got the message. but the weird thing is that it still charges, but the pc doesn't read it...? i tried to plug in it different USBs but nothing happends. i don't even get a message or anything. also, if i plug in another device such as my webcam into the same port, that works. But for help i have a Compaq Presario 6000. I have a Windows XP Home edition Service Pack 2. please help! i will appreciate you so much!

i have an italian mpy4 player its called "GOLD Mp3 Player DYNAMIC 4GB" ok so, i plugged in my player to the pc to charge it. the pc read it and everything was fine about an hour later, i got a message on the bottom right screen. i forgot what it said exactly but i'm sure it had to do with the USB. so, i disconnected it since i was done and later on i plugged it again to put a song on. however, the pc didn't read it. the thing is, it is able to charge but if i go to my computer, there is no "removable disk." now i also tried to do a system restore and i got this message: "Changes made to drives(s) F: after this point cannot be reversed because the driver was either excluded from System Restore monitoring, or was turned off or removed." please help! much appreciated!