Hi. I have a very big problem. I use Vista (Hungarian) SP1 and I also tried SP2 too, but dosn't help. And I use uTorrent 1.8.1 (and I tried 1.9 alpha also). It worked fine till 1 mounth ago, when started the problem. Problem: When uTorrent runs, the all internet die. I can't brows, send mails, and other things. I limit the upload speed 30kb (50kb the hole internet speed). And the uTorrent download speed is also very low, 50-100kb (700 the hole). I tried reinstal uTorrent, but it didn't help. Now I use bitcomet ( I don't like it), but there aren't any problem. I can brows, sends mail with the same bandwith limits. Some of my friends have the same problem with vista (some xp) and uTorrent.