Marin, How can you say that? I see about 2 or 3 comments about your program. Have you tryed any of the suggestions? What were the results? Try what I posted in my last reply and if you can get the display to show darkened block outlines of the character positions and rotating the pot to diminish them then, try your code. You have to get the hardware working before the code......

Dave Purola,
N8NTA