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Can ~/Library/Preferences/ByHost/com.apple.loginwindow plist be deleted? Won't the system create new one upon restart?
To delete it from Terminal
Code:
sudo rm ~/Library/Preferences/ByHost/com.apple.loginwindow*
It will be recreated, maybe better.
 
To delete it from Terminal
Code:
sudo rm ~/Library/Preferences/ByHost/com.apple.loginwindow*
It will be recreated, maybe better.

BINGO!!! bogdanw thank you so much for sticking with the problem. For good measure, I followed your previous suggestion of quitting all apps before restarting. I am usually lazy and let the OS close all the app when I shutdown or restart. Perhaps that is how the file corruption occurred in the first place. I am going to follow that procedure in the future just as a precaution.

On another note, the OS is running better than it ever has probably because I did a lot of cleaning out old crap in the process of trying to solve this problem. Once again, thanks a ton. I am going to have to become a supporting member now.
 
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