Hi Andy,
thanks for the reply. in the screenshot i have circled u the 2 signs of blockage(i have read about these signs at lichess forum and also tested stoping ad aware as i told u, so i m sure its ad aware). the other sign is that by clicking a player the game doesnt start(as it should)=still at the "screenshot" page.
here is the screenshot:
http://www.4shared.com/photo/gSlO_cXwce/screenshot.html