I'm not too computer savvy. I wish I can understand the manual and fix it myself. That's why I love the U series where you can just plug, drag, and go. I think I had the 4th row 5th from the right. All of my mp3 are samsung. I had both (the battery tube one and the cube one too) when they were just 256mb =P. You are really a Samsung Keener. You should work for them!!
I remember I had the language problem when my U1 died and I bought a U2 from ebay. It wasn't able to display the names of my Asian songs. So I thought there might be some issues with the regions. Thank you very much for your help. Based on what's on ebay, U6 seems to be a bit more expensive than U7.