Mac Mini will not keep mirror displays on after computer sleeps or shuts down.

Hello. I work in a school district that has a few Mac Mini computers set up with its own moniter and also plugged in HDMI to a projector. Last year we had them set up with OSX 10.6 and decided to upgrade them to 10.8 After the upgrade, Display Mirroring will not stay on. If the computer is reset or falls asleep it is set back to extended desktop. How can I get it to stay without having them constantly turning it back on? (The teachers are using network accounts. I doubt it has anything to do with it because it worked fine last year on 10.6. But I thought I would mention it.)

Does it only do it for network accounts?
Is there an admin account on the Mini to test with?

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Hello Happy Mac People.
I am currently having issues with my Mac Mini.
Currently, in it's Superdrive Slot rests a disc that was meant to install a Microsoft Keyboard and Mouse combo that was wireless.
I know what you are going to say. Microsoft equipment. Yes, I know.
Anyway. After it asked me to restart said Mini to install the software, I do so....to a grey screen. No apple logo, no spindle. No nothing.
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Was the software for windows or OSX?
Software was for OSX. Was even in a .dmg
where you in Boot camp when this all occured, or are you trying to load the drivers for OSX?
Drivers for OSX
Sounds like something really crapped out. Did you try booting into single user mode
Never heard of. Will try. Rebooted. Pressed Command and S. Nothing. Pressed option and S just to make sure. Nothing. Mac Mini has appearantly become box that is silver and white that just so happens to be labeled with the apple logo. Not happy that computer has just become paperweight.
Here's the KB article that tells you how (basically hold the S key down when it boots up.
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Mac Mini will not keep mirror displays on after computer sleeps or shuts down.

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