PeterL: you won't find this key in your gconf, since battery profiles were introduced in version 2.19.x (I assume you're using some 2.18.x version). I'm not sure what could be the cause, but if you're using some 2.18.x version, you can discard battery profiles being the problem.
PeterL: you won't find this key in your gconf, since battery profiles were introduced in version 2.19.x (I assume you're using some 2.18.x version). I'm not sure what could be the cause, but if you're using some 2.18.x version, you can discard battery profiles being the problem.