Using 16 x 4 Alphanumeric LCD with MikroC Pro for PIC compiler
You need to set up the row and column information in your code and send it to the LCD. Generally two chips are used on the LCD board. Their instruction setup can be found on the web in pdf format. The commands set up the chip to inform it how to process the information you send. Rows are from 0 to 3, and you still have to tell it where to place your text.