hooking up an DVF-40200S1FBY

Hi,

Iam trying to hook up an DVF-40200S1FB (40x2 lcd)
However, only the first row is fully lid (not the backlight,but the LCD characters)
everything is connected correctly like the datasheet and tutorial

What is wrong and how can i solve this please?
(Datasheet in attachments)
Thx in advance

dvf40200.pdf (314 KB)