On my Dell 1501 notebook, the user account is flaky. The shutdown button will disappear from the panel. The wifi will stop working. Ubuntu 10.04 will freeze up at times. Therefore, I had to do something.
Unfortunately, the solution is not one that is likely to please everyone. Every user must have an administrator account.
The change to an administrator account on Ubuntu 10.04 has been tested for only a day, so I will have to see if the problem resurfaces later.
I wonder if this is a problem on some computers, my computer or all computers?