does anyone worked with it?why it can react correctly to any command i send(blinkin on/off,clear memory etc)but i cant display data on the highest digits?it looks i cant point over the low memory locations,i give the timing through parallel port checking it by logic state analyzer,..........no way,i can send data,but they only affects symbols on the first and second digit(the lcd works,during turning on all the digits shows some symbols,that i can erase cleaning memory) any help is appreciated thank you!