Mission control won't show windows properly.

Mission control (expose) won't show windows properly. It's really annoying when I'm working and need to see what I've got opened or switch between apps. Sometimes it'll display them correctly, other times it won't. See the 2 screenshots open 3 windows:
1st screenshot: http://cl.ly/image/0U0q1N3J0Z2f
- chrome browser
- finder
- messages
2nd screenshot:http://cl.ly/image/2F0T3o1z0e3Z
only icons of chrome and finder are shown, but no windows. No messages not even the icon.
I'd really love all the help you can provide.

My problem started when the update to 10.7.5 ran. Mission Control in the Dock continued to work as before the update.
In System Settings>Mouse, the side buttons on my Might Mouse had been changed to 'Expose - App Windows.' I had to change the setting back to Mission Control.
Perhaps MtnLion suffered a similar glitch.

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I found what is causing the problem, and solved also the other problem I had with locking the screensaver in System Preferences
Very simple, now that I tried everything for days
I used a different password for my keychain
If I use the same one for both my login and the keychain everything goes back in place
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For new users: Every application on your Mac has an accompanying plist file. It records certain User choices. For instance, in your favourite Word Processor it remembers your choice of Default Font, on your Web Browser is remembers things like your choice of Home Page. It even recalls what windows you had open last if your app allows you to pick up from where you left off last. The iPhoto plist file remembers things like the location of the Library, your choice of background colour, whether you are running a Referenced or Managed Library, what preferences you have for autosplitting events and so on. Trashing the plist file forces the app to generate a new one on the next launch, and this restores things to the Factory Defaults. Hence, if you've changed any of these things you'll need to reset them. If you haven't, then no bother. Trashing the plist file is Mac troubleshooting 101.

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No, this is what I did
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and I restarted, thinking the system was going to recreate a new preferences folder
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When I rebooted , after logging in , the system did not ask for my keychain password
as I was used to since a long time and many systems ago..
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In comparison, MS Windows makes it easier to locate an open program although less fancy-looking.

Hi keclear,
If you would prefer that Mission Control not stack the open windows for each application, you may want to turn off the "Group windows by application" setting. You may find the following article helpful:
OS X Mountain Lion: Mission Control preferences
http://support.apple.com/kb/PH10850
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Has anyone experienced a problem where Mission control randomly changes the window?

Focus will be shifted from randomly between windows and desktops or windows will be resized

Hey first, carefully re type ur password, secondly reboot once more.

Mission control won't show windows properly.

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