Random screen blackout 2009 24 inch Cinema Display... HELP.

Random screen blackouts with 24 inch Cinema Display (purchased 2009). Never used with anything but same Macbook Pro (2009). No hardware changes on MBP. Just started June 6, 2012. Super annoying. Anyone else having this issue? Recommendations?

Hello, Ertjie.
The link titled Download the 24-inch LED Cinema Display Update from the kb/TS4045 article worked for me when I tried it today.  Click the "Download" link I post here or try the one in the kb article again.  Perhaps it will work for you now?
However, I note that the kb article expressly states that this firmware update: 
...is only intended for use with and will only install on the Apple 24-inch LED Cinema Display while the display is connected to a Thunderbolt-enabled Mac. (EZ Jim emphasis added)
If your Mac is really using Mac OS X (10.6.8)  as shown in your initial topic posting, your Mac may not be Thunderbolt-enabled.   If so, contact Apple or your Apple-Authorized Service Provider for help.
Message was edited by: EZ Jim
Mac OSX 10.8.3

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