said by nitzguy:
Example: World of Warcraft....if you haven't turned off the peer to peer functionality even after you've downloaded the patch, your computer is still going to serve uploads of data to other users who still need the patch so long as they've left their P2P on...
Actually, Wow only uses P2P during the patch process. Once you're done patching, all repairs are done via direct download from a Blizzard server. Its possible an installation is highly corrupted and downloads quite a bit from servers to replace corruption, but it couldn't account for anything near 40GB, as the game itself is only 25GB... Unless the system itself is unstable (like the Dell XPS630i with the faulty motherboards)..--
Battle.net Tech Support MVP