Arduino Mega 2560 Issues with basic "blink" code

Hello all Im new to Arduino just created account today I downloaded the program installed it sucessfully I followed the instructions in the tutorial for blink and Uploaded the program to my arduino but nothing happens .... what led is supposed to be blinking ? the L LED next to the ON LED ? Im asking because this LED was blinking the first time I plugged my board to my PC and no other LED is blinking ...

Yes. It should be the LED marked L.

Change the blink rate in the program and upload it again to see the effect.

...R

A lot of Arduinos come with Blink already installed.