I have used Kazaa and find limeware faster and better. But one of the downsides is always getting the awaiting sources button. In Kazaa, you would be able to tell Kazaa to search for more sources. In limewire, you only get to do it once, so when I have no downloads going (all are awaiting sources) I have to disconnect (which sucks for the upleaders). Then I get my DLs going again.

If only limewire would let you find more sources for a DL: it would be less frustrating for users, would solve your problem and would stop uploaders from losing their uploads (when you have to shut Limewire down to get more DLs going again).