today my friend wen he was booking for wainganga frm YPR to KCG in tatkal..IRCTC shows a msg.. sorry only 2 transactions per IP adress..wat is dis?he has not booked for wainganga today,but he has done for wainganga 4 times before,not in tatkal....dis msg only shows for wainganga only but not for other trains...y?any one know?plz clarify me...