I have a low cost PC that has 800 by 480 resolution physical size. I was using Ubuntu Hardy , it worked. Now I uninstalled Ubuntu Hardy and installed Ubuntu Lucid . While installing itself it showed only 80% of screen and I somehow I installed thinking that it will be okay after installation. Ubuntu Lucid is installed , still display not showing the full desktop. The task bar is below the actual screen size. If I run any application , it shows only 80% of application, remaining is buried below the physical size of display. I am not able to adjust the resolution also. The resolution is not changing even after I tried many times with x rander.
Thanks in advance.