Igor: Sounds like you have two problems, with the LCD being a separate one from the sync errors. For communicating with the board via IC.exe, try changing your port settings to 9600/8 data/no parity/1 stop/Xon/Xoff/FIFO buffers enabled. I don't have (...) (25 years ago, 29-Oct-99, to lugnet.robotics.handyboard)