Files that sit connecting for ages & then need more sources are usually fake. Have a read through the thread below for more info
Fake files showing up in search results

Try downloading an old file (not a new release or really popular one)...what happens?
Stay away from the files with huge numbers of sources (up to 100):wink:. See if you can download something which has around 10 sources...what happens?
If absolutely nothing will download at all, delete LW's preferences folder when LW's closed (points 2 & 3 below) & see if that makes any difference.
Fixes for LimeWire