Here are some answers:
1) When using control-Tab, the SP window (for unlocking the application) is
- we will fix this problem in the next build
2) the tray icon has some main menus greyed (locked, enter licence key, ...)
and I am unable to unlock SP.
- could you please specify this problem and send some screenshot? Send it at email@example.com
3) the SP tray contextual menu displays "unregistered" on its left.
- please, try to install the latest Beta-build from http://www.stickypassword.com/en/download/beta
It should fix this bug.