Reply to analyzing songs

so two questions i have all my music in folders (pop , hip hop etc) is there anyway to have traktor analyze ALL the songs instead of me having to go one by one? AND BIG PROBLEM i played a show today (ouside and very cold) when i loaded a new song for the first time and it analyzed it it wouldnt play the yellow bar would just go back and fourth and no matter what i did the song would not play .... was it because the cold or something? or because it has never analyzed the song before? it was a big problem because both my left side decks did the same thing so i had to play the rest of the show with my right side and eventually my right side started acting up.