Mac mini 2012 - Video Problem (Not HDMI Flickering)

Hello guys,
I have a problem with video, it causes to shut down the monitor while is playing Chefville in facebook, i had no idea why would to turn off monitor. It doesn't present any "beep" sound, it seems Intel HD4000 is a defective.
I waited like 15 minutes when mac mini is cooling, i pressed a button to turn on, the monitor works.
I think it's overheating Intel HD 4000 cause to shut down the monitor.
How to prevent this problem?
Thanks!

Get Temperature Monitor to see if it's heat related...
http://www.macupdate.com/info.php/id/12381/temperature-monitor
Does it use Flash or Java?
One way to test is to Safe Boot from the HD, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, Test for problem in Safe Mode...
PS. Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive
Reboot, test again.
If it only does it in Regular Boot, then it could be some hardware problem like Video card, (Quartz is turned off in Safe Mode), or Airport, or some USB or Firewire device, or 3rd party add-on, Check System Preferences>Accounts>Login Items window to see if it or something relevant is listed.
Check the System Preferences>Other Row, for 3rd party Pref Panes.
Also look in these if they exist, some are invisible...
/private/var/run/StartupItems
/Library/StartupItems
/System/Library/StartupItems
/System/Library/LaunchDaemons
/Library/LaunchDaemons

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I reply to my self
I have a mac mini late 2009 with Mountain Lion
I solved this problem disabling the second monitor from the dvi conection and conected it again with the vga plug in. My main monitor also conected by a hdmi plug to my mac mini
My mac mini turn off with no problem now and the rebbot loop disapear
Alain Hermosilla
Chile

Mac mini 2012 - Video Problem (Not HDMI Flickering)

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