Every download opens a new window
 

Whenever I go to download from a bit torrent site, a new LimeWire window opens up. Then I get notices on how I'm already downloading this file in the other window and how I'm sharing tons of files. This is really annoying since it slows down my cpu performance and I have to exit the new window before I move on then do it all over again when I download something else. It just started doing this and I haven't change any of the options. How can I fix this?