hi, first of all let me say that i enjoyed the semis matches...i have one gripe, however...i was very disappointed at the poor line juding which was particularly evident in the match between mia audina and lu lan to the point that people were shouting, booing and even cursing the official. this is the line judge on the far left-hand side which made several critical erroneous calls which could've cost mia the game. thankfully (for me anyway) all's well that ends well... just a question, is it possible to dismiss or replace a line judge during a game? if so, what would be the circumstances? thanks!