Merrie,
If you do not see the ActivManager icon on the Toolbar by the time, where the Airport and other icons are displayed, select Applications/ Promethean/ ActivDriver/ double click on activmgr, the icon should appear on the toolbar, once it appears select it and you should see an option for Flashbridge, select it and select Quit. If you are still having issues, please provide the ActivDriver version you have installed. (case# 237010)
Thanks!