This release of Jettison
correctly unmutes and then re-mutes speakers when playing its confirmation
sounds on machines running Snow Leopard and Lion. It also recognizes
your license if you purchased a previous version of Jettison via
the Mac App Store.
This update is FREE if you've purchased a license for Jettison.
If you bought Jettison from St. Clair Software, just
download version 1.2.4 and replace your existing copy.
If you purchased Jettison through the Mac App Store, please
run this version of Jettison once BEFORE you delete or
overwrite the old copy of Jettison in your Applications