Hi guys, I am using atmel T89C51AC2 microcontroller for my LCD display. After I had initially everything and executed clear display before printing the charater into the screen. So when I started printing the characters onto the screen, it showed the charater very fast and the it is covered by a line of black dots (data=0xFF). The strange part is, I did not asked the program to write (0xFF) to the screen after that. I dont really get it why this happen? Thanks in advance..