Both U and D letters aren't working properly. If i just press the 'D' on the keyboard it doesn't answer, if i press Shift-'D' it will type D , If i want a d i press Caps Lock and Shift-'D', so i can actually write any character, but still something must be wrong.Same is for the 'U' key.
All of the keyboard decoding is done on the keyboard before the data leaves the keyboard. Try a different keyboard
