Ok so I am able to join my bro's game when he hosts (although there are times when he creates the match and it doesnt show up --whats with that?)
But if i click on host a custom game nothing happens. I cannot click on the main page and i can see that the new game window is generated (by looking at the bar at the bottom of the screen in windows 7) but i cant get it to take focus. I tried clicking on its icon window at the bottom of the screen and nothing. I tried right clicking on that minature window and minimize and restore, still nothing.