Wireless Keyboard Brightness Keys Not Working

Hello.
Since an update a while back the brightness adjustment keys for screen brightness on my apple keyboard have stopped working. These are the F1 and F2 keys normally.
On my Macbook Pro keyboard they work fine but the wireless keyboard keys do not.
Anyone having the same issue or know a fix?

I had the same problem, minor but annoying. I found the cause, It is a combination of factors. If the following are true:
• You're using a laptop
• You are running 10.6.x (not sure which revision, true of 10.6.6)
• You have an external display connected
• The external display is non-Apple, or you don't have a USB connection to an Apple display
• You are using an Apple Wireless bluetooth keyboard
• You have the menu bar *on the external display*
Then the brightness keys won't adjust the brightness of the laptop's display.
The apparent logic is that if your main (menu bar) display is external, and you're using an external keyboard, then you must want the brightness keys to control the external display. The bug in the logic is that it doesn't check to see if the external display is capable of brightness control. So, it appears that the brightness keys don't work at all. Note that Max OS X can only adjust the brightness of an internal display or an external Apple display with a USB connection.

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