I was using my FTDI breakout board to programm arduino pro mini till the time it stopped working. I have a problem with only one USB port in my computer. When FTDI breakout board is connected to this port both TX and RX LEDs are lighting still and board is not recognised by windows. Alse from the time it stopped working any mouse or keyboard connected to this USB port does not work at all. All other USB ports are workng fine, FTDI and mouse/keyboard are working when connected to them. On the broken USB port there is 5V voltage that I've checked. It is strange but my USB Pen Drive/flash drive is working fine with this port, but when I connect mouse to it it does not work at all. Can anyone help me with this problem?