My 30-inch cinema display often doesn't come on at startup and I have to disconnect it and reconnect to work.

I have a 30-inch cinema display connected to a Mac Mini.  When I first boot up the computer after having it shut down for a couple of days, the display screen does not illuminate about half the time.  If I disconnect the display from the power brick and then reconnect it usually comes on, although sometimes I have to do that more than once.  It works fine once it on and displaying.  Anyone else seeing this?
Rocketman

Hi Rocky Rakoon,
Thank you for your post, and welcome to the Apple Support Communities.
I understand that your Apple Cinema Display is not turning on upon startup. I'd like to reset the following, as it may resolve your issue:
Intel-based Macs: Resetting the System Management Controller (SMC)
http://support.apple.com/kb/HT3964
You may also want to reset your computer's PRAM:
OS X Mountain Lion: Reset your computer’s PRAM
http://support.apple.com/kb/PH11243
Note: Resetting PRAM may change some system settings and preferences. Use System Preferences to restore your settings.
For more troubleshooting directly related to the Cinema Display, see this resource:
Apple Cinema Display: Troubleshooting steps
http://support.apple.com/kb/HT2810
Thanks,
Matt M.

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