LW had dragged my hard drive space from 1.4 gig to 200k, tonight, when I decided to post my original comments. This time quitting LW did not restore the memory. I was about to reboot (hating to do it because I had files actively transferring on the Carracho network) when I decided to try the system's disk utility and repair the permissions. There was a single error, and fixing it restored the free space to 700 meg, which was enough to get by on for tonight without a reboot.

Hope this helps.