Your LW's not connected...so you won't be able to search

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System details - help us to help you (click here)

Lots of info about deleting the preferences folder, including the location of the prefs folder, is in the 'Fixes for LW' thread in my first post. Click on that blue link
If you've just suddenly had trouble connecting (ie LW's worked before) then delete the prefs folder & see if that helps!