Lion 10.7.1 brightness control, backlight control, itunes control and volume control won't work!

basically the very first row of my keyboard refuses to work.. except for esc.& f3 f4..
it happened all of sudden, the only thing odd i did that day was to plug in my tiny ipod 2009 mode, and the other day these keys are all disabled.
I recently upgraded from snow leopard to lion, but it did happen few days later than the upgrade.
and I have a partrition of disk running snow leopard, and i tested it, all of the keys are working in snow leopard, so I think it won't be a hardware problem.
any suggestions?

Just in case someone got the same prob.. so i went to talk to 'apple genius' and then they figured out my problem:
install snow leopard & lion at the same time.
So i fully removed snow leopard and all keys got back to life.

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Hi AmishCake!
Thanks for your tipp! i cleaned the headphone port and usb-port and reinserted the plug several times!
i think this isn't the problem!
here i prepared a picture how the screen looks like when i plug in my headphones!
https://www.dropbox.com/s/omi3hlp1zzyx43k/Foto%2026.03.14%2013%2017%2040.png
it seems to be a problem of the update to 7.1 because some guys posted the same problem on other sites.
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Did she help you with these issues?
Did she tell you how to resolve these issues?
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Message was edited by: SWLinPHX

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dallen33 wrote:
Why should I come to grips with this? My Windows 7 install on this very MacBook Pro handles volume just fine. I can have my speakers at 50%. Plug in my headphones. Still at 50%, but not deafening.
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Alternatively, buy yourselves some high quality, lower efficiency headphones.
Cheers
Rod

Lion 10.7.1 brightness control, backlight control, itunes control and volume control won't work!

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