I cant see the sandisk connected to the computer

Hi, i was trrying to transform some songs to my Sandisk sansa player, and when i connected the usb into the computer,

it just doesnt show that the player is connected, although i can see that the player is charging, beacuse the battary line on the player is moving but thats all.

What can i do so i will be able to transform songs from my pc to the player?

thanks.

btw- i have tried several usb connections in the pc but the result is still the same.

Maybe your cord/cable has gone bad? There are different wires and pins in it that complete a data connection from those for charging.

Do you have it set for MSC mode?