I bought a new Windows laptop. I transferred my iTunes library from my old desktop to the new laptop using a flash drive. I downloaded iTunes and authorized the new computer. Now, when I play a song that I bought from the iTunes store (on the old computer) only about half of the song plays. The songs still play completely on the old computer but not on the new computer or the iPod. We're talking over 200 songs here that I cannot afford to re-buy.