If on someone's else computer, that someone may not want you to play game on his equipment. Please respect that.
If on YOUR computer, at home:
Make sure that cookies are enabled.
Cookies are used to pass informations from pages to pages.
Make sure that any security application DON'T block the transmition of referers for the yahoo domain.
The referers are used to comfirm the page you come from and to pass some complementary informations.
Electro
May 2011