I have had something similar happen, your best bet is to just close the browser window with the little "X" button at the top right of screen, then click on the play now button on your profile and it will ask you do you want to continue, click yes ofcourse and finish your game. Another thing you can try if you have the mozilla firefox browser is to get the "ADBLOCK" add on, eliminates all adds altogether. Don't think WGT like it much for obviouse adblocking reasons but no more problems with pesky ads, hope this helped.