Sir,. I was trying new sketch to teensy lc, but it is not showing in Arduino,. Teensyduino is also installed ,. in past ,I have upload sketch to teensy board 10 times, . Previous sketch is (USB keyboard/mouse) uploaded in teensy working . Now I am trying new modified sketch,. But teensy board is not showing on Port. I tried 4 other Arduino boards .they all are showing on Port . Please suggest me,. Where can be wrong???????? The msg is showing "Port(emulated serial)"