I experience the following: sometimes some applications' lenses are not
shown in Unity (last time Shotwell). The lens showd up as the app was
loading and than it disappeared completely. Moreover when trying to
switch between applications with alt+tab Shotwell was not there either.
I have experience
My problem is (with karmic final installed), that
1. the battery does not last nearly as long as it did with jaunty a week before
2. every time i sign in a pop-up tells me that the battery's capacity is low,
so it is either old or broken (it shows some sort of percentage, which is
declining from