Linux flash player settings dialog unclickable

I had the same problem (stuck dialog/acer notebook/fluxbox) and found that after some random combination of clicking and tabbing, I could highlight various buttons. This didn't stop it being stuck but I managed to open adobe's help page, which has a flash app that will open just the settings manager - this worked for me:

http://www.macromedia.com/support/documentation/en/flashplayer/help/settings_manager.html#117118

also another link I found after that may be of use - it has some specific solutions to things that may trigger the problem:

http://ubuntuforums.org/showthread.php?t=978212&page=3

I found a solution: I was using google chrome in ubuntu linux and I installed a Chrome extension called "Flashcontrol". Now the adobe flash player settings window doesn't appear anymore.