temporarly borrowed this computer (fairly new mac laptop) to watch the airforce game. when i click on espn3, nothing happens. click watch now, and then click on the game, nothing happens blank screen

atdhe.net. two of the 3 links say "press play" but there is not play button. blank screen. the other one requires veetle, i cannot download anything because this comp is password protected.

channelsurfing.net. each link comes up blank. just has the advertising logos around a blank screen.

is there something i can do here. i don't understand. popups are not blocked.