GW use very little cap while you play (say 3KB/s), which is why it can easily be played on dailup etc. The bad part is however when there are game updates, then it can drink a lot. I think it was something like 500MB when Factions was released. We can probably expect something similar next week due to the approaching release of Nightfall.
ye, playing nightfall, prophecies and factions ...
you are either doing updates for the game or your pc is doing ****...
got av installed ... maybe your pc is inefcted and spamming out