When I turn on mp3 player the screen lights up and says COBY and that's all it does, can"t turn on/off or use play mode. When I plug into computer an hour glass shows up and icon for the device does not show up on computer bar at all????

SOURCE: Not sure if player is charging

QUESTION ONE:
Can you see it in "My Computer"? It will show under "Removable Drive/Storage"

QUESTION TWO:
Double click the removable drive to open the folders. Can you see your music, photo and movie folders?

QUESTION THREE:
Can you see the player in Coby Manager - under the "DEVICE" tab?

QUESTION FOUR:
When disconnected from the computer, how long can you listen to the Coby player before it goes off?

If not present in My Computer or in Coby Manager/Device Tab, then it is not plugged in correctly.
a. Disconnect the player from the computer.
b. Wait for it to cycle through "Please Wait" and "Updating Library" screens.
c. Make sure the player is TURNED OFF
d. With player TURNED OFF, reconnect wire to the player then to the computer.
e. You will see a USB connector icon on the player screen and the player charging.

It will appear to be charging all the while it is connected to the computer.
After it has been plugged into the computer for an hour, it should be well charged unless the battery is completely run down. In that case, you need to do an initial 8 hour charge - with the coby player OFF - through the computer. (This one got me when I first got my player!)

f. Use the Coby Manager to disconnect the player (Found HERE CobyMedia Manager fix for MP822 (Windows XP/2000/Vista)

1. Open Coby Manager
2. Go to the DEVICE TAB
3. CLICK on EJECT Button in lower right hand corner.
4. It will have a pop-up screen to ask "Do you want to eject?" Click YES.
5. The second pop-up screen will tell you "The device can now be safely removed from the system."
6. Disconnect the player from the computer.
7. The Coby will now show "Please Wait..."
8. It will take the Coby about 10 minutes on the "Please Wait" screen and then on the "UPDATE the Library" screen - Be PATIENT

You should now have enough battery power to use it. To check the battery level,

1. Turn on the player
2. The battery icon is in the upper right hand corner of the screen - it is ALWAYS RED until it starts to go down... I've not had mine down very far, but believe the red line gets shorter as the battery is wearing down.

Hope this helps.