"Always on Top"

Then, there are others that are causing the conflict. Unless you know exactly when the problem started and can restore your Preferences folder from that point or earlier, restoring using TM won't help. There's no need to do a clean install—waste of time. Here's the second way;

While logged into the newly created admin account, backup the bad account's folder, delete the bad account, selecting the save data option (which stores the data in /Users/Deleted Users/ as a disk image), recreate the bad account using the same username/password combo, log out and back into the recreated original account. If the problem's solved, open the saved data dmg file in /Users/Deleted Users/, open the /Library/Preferences/ folder from the saved data, open the current /Users/restored account/Library/Preferences/ folder, and slowly copy plist files from the saved data folder to the current one that don't exist in it. Log out and back in to ensure there's no conflict and things still work correctly. Resolving conflicts or identifying corrupt plist files is a laborious process. Good luck.

Ahh, got ya' - I guess I was lucky then because it worked in my case (and the "offending" plist apparently was one that hadn't been created in the new account).....