the sketch should do nothing, but as you can see I am getting weird input.
That should be a weird output from the arduino.
As I said that will not happen if you run that sketch and it is wired up correctly.
It could be that your board is damaged, do you see the TX light flash when the serial monitor is receiving this?
We need much more information:-
What OS are you running on the PC?
Will the arduino program up a blinking LED sketch?
Have you set the speed on the serial monitor to be the same as the arduino sketch?
What sort of arduino are you using?
Have you a photo of your setup?
Have you selected the right serial port in the tools menu?
What happens to the serial monitor when you disconnect the arduino?