OK, I upgraded to iOS 5 on my iPhone 4 and the latest version of iTunes, but I noticed last night that iTunes hasn't been automatically backing up my iPhone whenever I sync. It said that my last backup was on October 13. The previous behavior before iOS 5 was that whenever I would plug in my iPhone via USB, it would automatically backup, then start syncing my apps. Now, it will just start syncing my apps and that's it (USB and WiFi). The only way I can initialize a backup now is manually backing up by selecting my iPhone from iTunes. I tried deleting all of my backups from iTunes, then starting anew, but still have the same problem. Is there any way to get my automatic backups back? I don't have iCloud backup enabled.