I have a fairly new desktop computer running Vista (which has never caused me problems), 64 bit OS, and 4 GB RAM. I recently installed iTunes (9.0.2.25). I have no problem importing albums from my CDs onto the computer, or syncing the tunes to my iPod Nano. However, the music sometimes just completely disappears several hours or days later from the iTunes album listing on the computer. I had about 6 complete albums that I imported over the last several days. When I opened iTunes to play one of them today, there were no albums or individual titles of any kind listed. The only thing that was listed was the "album" link for a radio station I listen to. When I'm in iTunes, and I click on things like "Recently Played," there are no listings. It's like they were never imported. I just finished importing one of the albums for a second time, and everything is listed and all the songs play fine. But I don't know how long it will be there! Any ideas?