Sorry if this is redundant, but I couldn't find a post addressing this... Today when I set my 20GB 4G iPod in my Altec Lansing InMotion speaker system and turned it on, there was a sporadic (maybe every 20-25 seconds) momentary inturruption in the songs. It sounded like a part of the song was missing, almost like a record (remember those?) skipping over a part of the track. Anyway, the problem was also apparent with headphones, thereby eliminating a speaker malfunction, so I reset the iPod. This seems to have solved the problem. Has anyone else come across this? Is it a normal albeit occcasional glitch?