Hi, The scroll function on my new 160 gig ipod gets unresponsive at times. Ill try to adjust the volume or scroll through a menu and it will not do anything. Other times it works fine. Do I need to take it back? Also, I burned a bunch of CD's into itunes. Upon playback I found that some of them have skipped. this is really pretty irratating, as I than need to delete them, than pull them back out of storage and import them again. Is there anyway to avoid this in the future?