Hey there.

I'm trying to work with my servo and the arduino UNO. I made this program  "sweep" . http://arduino.cc/en/Tutorial/Sweep, and load it into the board.
but when I wire it using GND and 5V (I have wired all GND)  from Arduino the LED indicating ON and the yellow one dim like if the servo was stealing current. I tried to connect servo with another source, but doesn't work either (source is from USB charger).

Maybe I am wiring wrong or so, or I need another thing , or UNO doesn't support SERVO.h, dunno.
Please suggestions are very welcomed!.

Another quick, Can I plug ARduino to a USB charger?