OK so i recently purchased a 20x4 LCD made by Hacktronics http://www.hacktronics.com and i set it up with the following tutorial http://www.hacktronics.com/Tutorials/arduino-character-lcd-tutorial.html I then ran the code on the page and changed the 16,2 to 20,4 and uncommented the lines yet this is not working. The LCD lights up blue but no text is displayed. Im using 330 ohm resistors (im not sure exactly, but there blue with pink and black stripes) but nothing seems to help it. Thank you to anyone who might be able to help!!
EDIT: In the picture my resistor is not shown because i was trying other things to see if it would work, heres a close up on the resistor