K70 Question about the backslash and pipe key.

I purchased a Corsair K70 keyboard and received it the Tuesday which has just passed. I program a lot so I need the backslash key and the pipe key. However I can't seem to access them. I can see the button but when I press it this appears "#" and if I press shift then press it, this appears "~". So if anyone knows or could help me understand why I can't access the backslash or the pipe key It would be really appreciated. I am using Windows 7 if that helps and it is the UK version.