This seems to be fixed in Maverick. Closing.
** Changed in: gnome-power-manager (Ubuntu)
Status: Incomplete => Fix Released
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"Make Default" button in gnome-power-preferences unclear
https://bugs.launchpad.net/bugs/410806
You received this bug notification because you are a member of Ubu
Thank you for taking the time to report this bug and helping to make
Ubuntu better. A new version of GNOME Power Manager is available on
Maverick and we are wondering if this bug is still an issue for you with
that version? Could you please test and comment back? Thanks in advance.
** Changed in:
** Attachment added: "Dependencies.txt"
http://launchpadlibrarian.net/30063685/Dependencies.txt
** Attachment added: "DevkitPower.txt"
http://launchpadlibrarian.net/30063686/DevkitPower.txt
** Attachment added: "GConfNonDefault.txt"
http://launchpadlibrarian.net/30063687/GConfNonDefault