Turn OFF the white flash WITH 10.8.5 - the old solution is no longer an option I have ALREADY tried:


Within the System Preferences/Accessibility:  De-Select Flash the
screen when an alert appears. 
Toggling Select then back to De-Select 
While I found the solution to delete: 
~/Library/Preferences/com.apple.universalaccess.plist - 10.8.5
replaced Universal Access with "Accessibility", which has no
apparent equivalent file within the Lib/prefs.  If there IS, please
let me know.


I really hate the white flash.  REALLY hate it.

BTW: I did do my own research before asking this question, including on this AskDifferent website.  The solution found on AskDifferent and other sites only work on older Mac systems (up to ~ 2011).  The ones with UniversalAccess.

Thanks, in advance for any useful input.
- Scott
The plist you listed is the correct one to remove. Remove it and try rebooting, and your problem should be resolved. If not, create a new user account and log into it, and see if the problem persists.