[lipidfats]

Well a hard rest should fix it if it's something the phone did. Since you just got your phone, that could be a quick fix for you. Maybe it's on your PC side though... You probably checked already, but if you didn't... make sure you have open activesync on connect - under File > connection settings on your PC. And as hbenz suggested, make sure activesync is selected (not storage) in the same place where you unchecked advanced networking. Goodluck.