hi im having problems with windows media player 11, when trying to watch a movie im getting audio and no picture its telling me i need a codec please does anyone know of a legit site to down load a codec from, :) also while doing a scan im getting a message telling me i have a trojan brisva i have downloaded brisva removal tool but after scanning its saying that this virus is not found on pc, but running a full scan from norton it is still picking it up telling me to review but still cant remove please can anyone help :o thank you