This has happened to me a few times. I'm using 3.2.3 pro, Mac OS 9.2, and it happened today.
Last time I quit, I had several files listed in the "Downloads."
When I started Limewire today, there was nothing there at all.
I have a lot of files in my Incomplete folder.
I have my prefs set to keep incompletes 28 days.

Any suggestions?

I tried replacing the downloads.dat with the downloads.bak but no change.

thanks