2.5.5 and the empty cue

I know there's a pref to keep all incompletes (which I assume includes the massive list of REQUERY) for a certain amount of days. But through all the versions of Limewire I've used, it seems like every other day I open the application and the entire cue has been blanked out.
What's the point of this?

[efield]

Quit LimeWire, delete the downloads.dat file in the Incomplete folder, and open LimeWire again. The .dat file that keeps track of your partial downloads may have been corrupted.