I have exactly the same problem with Ubuntu 11.04. However, my notebook do not uses a ATI Graphics Card, so I think that it is not a duplicated bug.
Notebook HP G42-240 Processor Intel Core i3
I have exactly the same problem with Ubuntu 11.04.
However, my notebook do not uses a ATI Graphics Card, so I think that it is not a duplicated bug.
Notebook HP G42-240
Processor Intel Core i3