HT4293 just downloaded the update but it requires that i be running a LION, where as i am running now Mountain Lion... please HELP!!

can some one please help....
i have a MBP 17" MID 2009 model...
i just got myself a Apple 27" LED display... now when i connect it and want to lower the brightness i cant... it simply does not have that option... also i got the update from apple site for LED display and it says i need to be running a MAC OS X 10.6
can please someone help me... i love this monitor but **** its BRIGHT!!

hi i have Mountain Lion and i connected the display with USB cable attached... and still cant control brighness...
the software i am looking for is supposed to update the firmware of the display, but as i picked up perhaps an old stock piece this firmware was not on the display itself.

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