[Shuie]

I travel 100% of the time for my work and my iPod is with me all of the time. Every 3-4 weeks my iPod will start skipping through the songs that I've already paid for and downloaded from iTunes. It flat out refuses to play them. Low and behold, when I do a software update at the house and then update the iPod by plugging it in, everything works again. 3-4 weeks later, same thing, Im on the road in an airport, and all of a sudden, I cant listen to any of the damn music I've already paid for from Apple.

Before I spend another $.99 on iTunes Id really like to know WTF is causing this? The songs I've loaded into my iTunes library from my CDs work fine all of the time. Its only an issue with the several hundred of dollars worth of songs that I've purchased from iTunes. Does Apple version the files they sell and then break them if you miss a patch or something? Is there something I can do to convert all of my existing music files so they don't break every time I miss a software update? Anyone else have this issue?

TIA