hello my friend ! could you explain me step by step how to do the code tags ! i don't understand what do yoy mean ! 
with codebender gsm remote control by christosxouris i had these three mistakes http://postimg.org/image/4c50ma8ol/
with arduino ide it was uploaded with no mistakes !! :~ :~ :~ How did this happens ?
is it possible to have the external power supply and the usb cable together on my arduinos at the same time ? Only with the external power supply the gsm can receive sms and i thought if i had and the usb cable could see at the serial monitor if the sms received