I have a user, supersecretuser, that is in the sudo group, but doesn't have sudo access. Is there something else that needs to be done to give this user sudo access?

$ ssh supersecretuser@myserver

supersecretuser@myserver:~$ groups

supersecretuser adm cdrom sudo dip plugdev lpadmin sambashare

supersecretuser@myserver:~$ sudo vim install.sh 

[sudo] password for supersecretuser: 

supersecretuser is not in the sudoers file.  This incident will be reported.

supersecretuser is the user we setup when doing the Ubuntu install.