The recent update of DEVONthink to version 2.7 unfortunately brought not only many improvements but also two cumbersome bugs: When the Sorter starts after logging in, e.g. after a system restart, DEVONthink itself opens instead of the Sorter. And if your Mac runs OS X 10.6.x or 10.7.x, DEVONthink is no longer visible to DEVONthink To Go on your Wi-Fi network. Sorry for these inconveniences. Expect a bugfix release shortly.