I hope it isn't raining there like it is here.

Go to LW's menu Tools>Options>Saving & reselect your regular LW downld folder & press Apply. Go to the Library window & press Refresh button.

Which version of LW do you have? The LW 4.2.x had some bugs (like that one.) Best to update to the latest which is 4.4.1: http://www.limewire.com/english/content/download.shtml or your personal downld page if you're a pro user. This version was released just today, compared to 4.4.0 which was released 2 days ago (better installer.)