Version 1.5.3 of Jettison is now available, correcting a couple of bugs that could cause Jettison to crash. The folks that reported the bug simply noticed that Jettison’s icon would disappear from their menubar sometime during the day. The new version should eliminate that problem.
You can update your copy by downloading version 1.5.3 from the Jettison Release Page or by selecting “Check for Updates” from Jettison’s menu in your menubar.