I've just installed RHEL 4 in a VM, in the process I set a root password, created a user and set it a password. On reboot the display only goes as high as 600x800 so I tried typing
sudo gedit /etc/X11/xorg.conf
blah is not in the sudoers file. This incident will be reported.
I know I am typing the password correctly and haven't modified /etc/sudoers or any users or groups since creating them in the install. Why is this occuring and will adding a user to the wheel group (via visudo) make them an administrator (not what I want)?