When I first started using Vl 5.9 Delux I noticed that after logging in and I'm using kde desktop, when in terminal mode, and I typed 'su', it would automatically enter 'root' without having to enter a password. This I liked very much since I am the only user on this computer. It is very convenient not having to enter the password every time.
Sometime recently though, in my dinking around with the system, I must have done something that canceled that great little convenience out. Does anyone know how to reset it