Q. My netbook is really slow after upgrading to 11.04. Videos are choppy and the computer heats up a lot more. Is there any way to fix that?
A. One solution is to get a better netbook, with a better video card, but its not practical for most of us. A quick way to fix this is on the login screen, to select Ubuntu Classic Desktop. This should bring back the desktop you've had before the upgrade:
Keep in mind that this is only a temporay solution. Mark Shuttleworth has stated that the next version of Ubuntu (11.10) will most likely not ship with the Ubuntu Classic Desktop.
Update: Here's another method, if the one above doesn't work (thanks Michael!):