that's right i can confirm everything mentioned above on ubuntu
karmic
** Changed in: gnome-power-manager (Ubuntu)
Status: New = Confirmed
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Power statistics make no sense, and graph smoothing is buggy/broken
https://bugs.launchpad.net/bugs/444578
You received this bug
kubuntu karmic 9.10 confirming this bug not only for applets but also
some other apps, like blender and google earth and inkscape...
middlemouse drag will not work with all of these applications anymore
although usually middlemouse click does still work...
i tried debugging wiht the application