I want to use an usb external numeric keypad. The keypad has numlock, /*-+1234567890.000 backspace and enter keys. It works fine with Mac, all of the keys can be recognized by my mac 10.9. When I use it in the parallels, 9 becomes pageup, 8 becomes up, 7 becomes home , 6 becomes right, 4 becomes left, 3 becomes pagedn, 2 becomes down, 1 becomes end, /*-+ work. What should I do?