Brightness resets to lowest setting after reboot.

This has only just started happening since the 10.5.1 update. Every time I boot up my iMac, the brightness setting is turned all the way down. Is there a fix for this?

See if the response in this thread helps:
http://discussions.apple.com/thread.jspa?threadID=1248585&tstart=0
If not, then repair permissions & restart. Hopefully, that should do the trick.

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