We have numerous iPods in our house... One of them is a 160GB Classic. I won't sync all songs, it makes itunes run VERY slow and it can't be manually reset from the iPod. When I try to reset it it still shows the couple hundred songs that did sync (out of 5000). When I leave it alone long enough itunes will see the iPod and I can reset it in itunes.But it still won't sync all the music. I have it sent to manually manage my songs. I was trying to treat this iPod the same way I sync my 120GB Classic (which works and syncs fine). Any help would be GREATLY appreciated!!