Thanks for the test result kokoblico.

Perhaps I didn't word my suggestion very well. Open LW & Activity monitor. (a) Make a note how much VM LW is using "before" you do anything with LW. (b) Then do a search. Make a note of how much VM LW has used after the search finishes. (c) Then go back & make a note of how much VM has been used 10 mins after that without doing any searches. Is there any difference between (a), (b) & (c) amounts of VM? (d) Make another note 10 mins after (c) & see if there's any difference.

Which version of LW are you using? You can find out by going to apple menu bar, click on the Limewire name next to the apple icon in the far left corner & choose About LW. This will tell you which version.