the captcha code format does not work, this means: size, background, foreground. Automatically the background colour becomes white and the colour of letters is yellow which is illegible. When I try to change the colour of the background (does not matter which colour I choose) it becomes black and the captcha code disappears completely. I have been using the Worpress 3.7.1 and the really simply captcha 1.7. The same it is with Mozilla or Chrome. Can anybody help me with this?