The standard solution for situations like yours is to clear the preference file (make sure you have exited from PSE completely).
1) Go to this folder:
2) Rename: "10.0" to "10.0-old"
3) Close your Windows Explorer
4) Restart your PSE10.
This should re-create fresh copies of all preferences files.
Yep, that "suggestion" wasn't indicated by the problem.
No to re-installing. Just delete these two files -- they're in the hidden "\ProgramData" directory, so you'll need to temporarily change your folder options to show hidden files.
Start PSE, and wait while it automatically rebuilds those database files.
I changed the directory names to PSE10.
Message was edited by: photodrawken to correct typos.
Thanks, photodrawken. That did the trick. Out of curosity, does anyone have a hunch as to why these files got corrupt? The only thing I can think of that might be a culpurit is a download of Splashtop, which is an app that will synch your desktop with your droid. It had an agressive downloader that exhibited bad behavior, like resetting my Firefox home page to startfunmoods.com's search page and perhaps some other stuff. I was unhappy with the app, and have since uninstalled it on both my laptop and droid. But I'm wondering ...
Again, photodrawken, thanks.
You're welcome, jdeline.
Those PSE files control what appears in your Content and Effects panels. The usual culprits that affect those files are installing 3rd party plugins, or actions, although I suppose it's possible that a malfunction of PSE while launching could, too. Non-PSE apps are always a candidate, and your suspicions about Splashtop because of its behaviour is likely correct.