I have GPG keychain for Mac too.What you are experiencing is the glitch in the program. Its there sometimes and other times its not.What I do is:- reboot- Go to control panels, then look for GPG control panel. Click about. YOu will see a button in there called FIX GPG. click it. It will repair GPG to some degree.Now, it should be working or if not, reboot again. . suck eh? They are aware of the glitch and they recommend to just wait for the next nightly build of the software coming soon. . .Another trick is to disable or remove the public keys you don't need or leave only the ones you use frequently. This may help.Mine sometimes shows no private key in the menu, or sometimes your glitch of no public keys, or some missing from the menu.You are not alone ,but I'm happy with mine doing the above tricks. . I find it helps to only use text edit and not use GPG in any other programs like a web browser or email. Thats where my glitch comes to life. . . .when I try GPG menu (in services) in any other program.take care!j