Plz plz plz limewire question?

im usin limewire and recently for some strange reason, i havnt been able to preview the songs im downlaoding or play any song that is already saved in the library, and also wen i click on the library on and it goes to the library, i click on a song then click the enqueue on and the song dosnt move into the box below and i also cant share files i know how to do it but it is havin none of it, iv been through all the settings and absolutely nothing is workin, plz plz plz sum 1 help it frustratin me now as iv tried everything xxxxxxxx