I also use OSX & it does seem to be a little different to windows. I just changed the overall downld location to another HDD. I chose a new file to downld & it went to the new incomplete folder.

I say that seems to be different to windows b/c in my trials there when changing downld location also seemed to move the actual incomplete files also.

Hmm a work around would be to move all items from the old incomplete folder to the new one whilst LW is closed. You would need to replace the downloads.dat & bak files in the new incomplete folder with those from the old incomplete folder. But LW must be closed when you do this.