I have an iPad1 that was (and still is) syncing successfully on iTunes installed on Windows Vista. Now I have a Mac (running Lion 10.7.2) . Syncing does not work. There is no error message, on the contrary, all the messages are positive and normal, but the process completes very fast and nothing is actually synced. Moreover, backups are not taken unless I invoke it myself explicitly. Another weirdness is that the sync itself does not start automatically after connecting the iPad. I have both reinstalled iTunes (after wiping out the libraries) and reset the iPad, but to no avail. TIA for any help.