A month or so ago I updated from 10.04 to 10.10, the problem is that after the update process programs that I had full control of no longer respond to me as a regular user, and work normally only when I run them through the terminal using sudo.
Any idea how to fix that? The programs that don't run normally are all the programs I installed before the distribution upgrade.
I used sudo update-manager -d to upgrade btw.
Can you reproduce this symptom with a fresh, new user account?