HELP, LOST 70% of my songs!*$#%&
 

I haven't used Limewire in about a month (my computer runs WAY too slow when it is on) and when I turned it on today I was prompted to click on prefered language, speed, prefered file, etc.
Well, when I finally arrived into my Limewire, my Library looked different, and most of my songs are gone. I have no idea how to get them back, and I am tempted to throw this thing out my window. [The glass one against the wall 3 feet from where I sit right now.] PLEASE help me find them. I have tried the suggestions here already. I have tried to click saved files>add file>file name (all of them) all to no avail. What the heck happened????