Please be advised that we here at GeeksToGo will not assist you with issues relating to P2P file sharing programs. While many of these programs are-in-and of themselves legal, most things acquired by their use are not. Instead of attempting to differentiate between the legal use of P2P programs and the illegal use thereof, we have decided to stop helping with issues regarding this software. It is also in your best interest to know that many P2P software packages come bundled with spyware/malware/virii and that their use greatly increases the chances of your computer becoming infected.
Since restoring my laptop I have installed soulseek (filesharing), vlc media player, firefox, zonealarm and winamp.
I recommend you take xxx1's advice and post a HJT log in the Malware forum. After you get the "all-clear" from Malware, come back to this thread if you're still experiencing the problems.