Sorry for it, if it is a dumb question
I had to build a sample circuit for Nokia 3310 LCD, to see how it works. I haven't got any level shifters, so i used voltage divider resistors.
It is working, but at the bottom of the LCD, there is a sort of random dots, as you can see on this picture : http://imageshack.us/photo/my-images/545/24269010200622685107860.jpg/
There is a capacitor between VOUT and ground, as recommended. I used the most common "Hello World" program
Thanks for and ideas, why it happens