lcd 161A/displaytech and Liquid Crystal Library

Hi all !

i have this lcd : 161A from displaytech
http://www.displaytech.com.hk/pdf/char/161a%20series-v11.PDF

and i don't know why, but i can't make a success with it and liquide crystal or lcd4bit library on deicimilia 0012...

i use this (with lcd4bit):

lcd ->arduino pin

1->ground
2 ->+5
3->+5 on + potentiometer
4->PIN2
5->PIN11 (and i try with ground to !)
6->PIN12

7to10 (dont use)

8to14 -> 7 to 10 on arduino

.....
with the potentiometer i can have a 8 black scare blinking on the line with the exemple software.....but anyway to have some caractere....
I'm trying with some combinaison with pin assignement but no luke...!!

Any one know if i can use this type of lcd ??? it's based about KS0066U ship and i think it's compatible with this libray..

thank's for you help

fbm