i am interested to say the answer to this one myself. becasue i set up a
computer for a family member using ubuntu 10.4 and everything works great except
for the issue you are having.
I checked the package manager and searched for those packages and it said they
were installed. i tried updating still no help. i even downloaded the latest
version of java and installed from terminal but still couldnt get it to work.
any help here will be greatly appericated.