What do you mean press the button to start a game? And what is the first page?

If your refering to selecting the room you probably have a pop-up protector on your computer. Or if you mean accepting a challenge or sending a challenge then I may have no idea what is wrong. I read the blue writing that often tells me whats happening.

this used to happen to me but i jus gave the page time to load properly helped me but most problems are to wid java in my experience try downloading latest version