I watched the "basic split polygon" tutorial, as im learning maya.. :p

I watched the whole movie and thaught that wasn't to hard, but when i started to do the same thing, a problem appeared.

I saw that he could click [b]in[b] the polygon with the split polygon tool. But i cant do that?!

Here's a picture, so you can understand what im jiddering about. I wan't to do this: