Marfitalu: That normally means that you have a problematic driver installed. My WLAN Module caused that over months ;) Maybe you can remove it by updating all of your drivers? (I bought myself a new WLAN card , since mine was from a cheap manufacturer with crappy drivers )
(sakla) If you want to find an opponent with similar playing skills to your own look in the Ratings page of the type of game you want and find a player with a similar BKR. (pauloaguia) (Bütün ipuçlarını göster)