HD44780 Backlight 2004 lcd 20x4 WE HAVE PROBLEM !

HELLO....I NEED HELP....
I HAVE HD44780 Backlight 2004 lcd 20x4 (WITHOUT I2C).I HAVE CONNECTED EVERYTHING LIKE THE EXAPLE OF "HELLO WORD OF ARDUINO TUTORIAL" ,I INSERTED THE PROGRAMM IN ARDUINO AND THE ONLY THING THAT IT DOES IS TO LIGHT THE SCREEN.WHAT SHOULD I DO TO MAKE IT WORK?
THANK YOU FOR YOUR TIME!

please connect last pin with ground and second last with +5V