Sticky Keys may be set to On. When Sticky Keys is On, a letter you press immediately after pressing Shift becomes capitalized. If you are unaware that Sticky Keys is on when you press Shift followed by a letter, then you will likely see two capital letters in a row. The same holds true for Ctrl; if you type Ctrl+T to make a telephone call, the next key you press will not function properly if you are not aware that Sticky Keys is on. Sticky Keys does not affect the use of Alt. To turn Sticky Keys off, press Ctrl+M to open the Main menu, then select the Keyboard menu. Turn Sticky Keys off and select (S)ave to keep the changed setting.