I just got a new GK08 keyboard/mouse, and set it up for standard English (or whichever that option was called). I am using a Macbook. However, when I try to use the shift key options above any letter keys or the other punctuation keys, the wrong key is typed--for some, they are shifted over, and for others, they are totally connected to another key. For example, if I want to insert the & symbol, I have to type shift-6, not shift-7. Is there some way I can reset the keyboard, or is this a malfunction? I bought it through Amazon last week but no longer. have the box. Please advise, thanks.