Suddenly cannot open ANY folder in Limewire's "Library" tab!

[brianko722]

Suddenly, without having changed anything in Limewire myself, over the past week or so, I am unable to open ANY of Limewire's (version 4.16.6; Java version 1.6.0_05) library's folders. All that shows in the library-tab view window is a button to configure Limewire's sharing options. That button opens the "Options" menu for all of Limewire's settings/preferences. I've had Limewire set the way I want it for a while now (months), but have NOT experienced this problem until approximately a week ago. I've tried changing the settings in the configuration and applying them, closing and re-opening Limewire, even restarting my computer, and still I can't get ANY of the folders under the "Library" tab to open and display their contents in the view window, so they can be selected and played, as they've always been able to before.
Is anyone else having this serious problem with Limewire? Please tell me how to get Limewire working right as it used to. Right now, I can't play ANYTHING I've downloaded to my "Shared" folder (Limewire's library folders) due to this inexplicable problem!!
Thank you for any and all replies/resolution of this problem.