Display Brightness Changes

My wife's iMac 17" G5 has recently had some problems with the Brightness setting. When she turns on the iMac, the Brightness is set to the lowest setting. She can re-set it to the highest setting, but more and more frequently, when she turns it on, it's once again at the lowest setting. I haven't been able to find anything that would cause this, and it's pretty much a standard install.
The only non-standard item that she has on it is an eyeTV firewire tuner, but that has always been connected.
Has anyone else experienced something similar?

zombyorc,
Try the following.
http://forums.lenovo.com/t5/W-Series-ThinkPad-Laptops/Disabling-Auto-Screen-brightness-on-Intel-HD-G...
or
http://forums.lenovo.com/t5/T400-T500-and-newer-T-series/T410-screen-brightness-dims-washes-out-on-b...
*Non Lenovo employee*
I have a Y2P (i5) ... Feel free to ping me if you want me to test some applications with your Y2P if you have the same model. I don't mind keep doing recovery on it if needed .... =)

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    [Quote]
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    ~ sierra42 ~
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    -- I am not support, I'm just trying to help! --

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    This hint is for all of you who experience any problem with the adjustment of the display brightness.
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    After a cold and/or warm start, it sometimes happens that the brightness was changed by the system itself to its dim power saver setting or maximum value and sometimes - what a big surprise - remains as it has been configured.
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    Download a precompiled version of the command line utility brightness here and extract the binary to your desired path (e.g. /usr/bin).
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    An easy way to trigger OS X launching a program automatically is to add the desired program to your Login Items. But, in this case, it will not work the easy way, because we have to launch a so called classic command line utility with a given option. It is not like starting Mail or iCal, which appears as typical applications to OS X. You must start brightness via Terminal by typing "brightness 0.5" (without quotes) to modify the main display brightness to half of its max.
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    Thanks. Works great. I made a ScriptBundle and a User Agent (launchd) . So if someone sets the display brightness to maximum, it automaticaly corrects it at next login.
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    Solved!
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