LimeWire's language is set to something your computer doesn't understand. If you see the menu, click on the second set of boxes (it should be the 'View' menu), then the last item in that menu (which would be 'Change Language' -- it should have an arrow to the right of it), and choose English (it will be in English). You'll have to restart LimeWire to get the right language. The next beta version of LimeWire will stop LimeWire from getting into a state where it's all boxes.