In the past 4 days my computer has been freezing. I'm not talking about for a second or so, I'm talking hours. One day it froze for 24+ hours. I only happens when i downloading something from a torrent. I have been downloading many thing for months, but this has never happened. It has done this to me on Utorrent, Bittorrent, and Bittornado. I have done a virus scan and deleted what has showed,yet it still freezes. I have vista ultimate, but that can't be the problem because It's been stable. What causing these freezes?