My 2 cents. I've installed beta 360 to see if I can help. Of course, I haven't any kind of BSOD (I have utorrent installed in p:/mtorrent folder). Trying to see the multiple instance error, I've try to load a torrent using the classic "open by double-click" method, and nothing happens... nor a new instance is opened nor the current instance opens the torrent. Trying to locate the problem a little more, I've closed utorrent and clicked in a torrent. Beta 360 opens at that command, but the torrent is not loaded neither. Even more I have restarted build 345 (version 1.2.2) and repeat the operation. It works perfectly. So the problem have to be located between 345 an 360. Let's look what happens to 358 unicode... it neither works. So we know problem is btween 345 an 358. I'm using NT 4.0, and I'm starting to think that I'm the Omega man of NT 4.0 so my conclusions can be influenced by the use of this operating system. Can anyone using W98 or Wxp confirm the problem?.