Can't read manual

My 640 is supposed to be in St.Louis for me to pick up tomorrow.
I tried to look at the manual but all the letters look like little boxes.
Can someone tell me what setting I have to change to fix this.
I am using Windows 8.
Thanks,
Mike18
I tried to look at the manual but all the letters look like little boxes.
Can someone tell me what setting I have to change to fix this.
I am using Windows 8.
Thanks,
Mike18