Can you also check whether the problem still persists with a newer version of Ubuntu, preferably Natty? If you do not have a machine running this version, boot your laptop with a live CD of Natty and check whether the problem still occurs there.
Can you also check whether the problem still persists with a newer version of Ubuntu, preferably Natty? If you do not have a machine running this version, boot your laptop with a live CD of Natty and check whether the problem still occurs there.