uninstall your flash player: http://helpx.adobe.com/flash-player/kb/uninstall-flash-player-mac-os.html
then download and install the correct flash player: http://get.adobe.com/flashplayer/
p.s. make sure the mcafee add-on is unticked unless you are certain you want it.
Thanks,, I have multiple versions so delete all of them then install correct one?
If you use the uninstaller from the link that kglad provided, it will uninstall all installed versions.
[topic moved to Flash Player forum]