[bcsco]

It’s been awhile, but I had to run Sudo commands because of some hardware and software issues. IIRC, one application (or more) had to be installed through Sudo.

[B Knotts]

OK...yes, all programs are installed as root, so you would have to use sudo for that.

Probably you were doing things like:

sudo apt-get install kmail

But I think you have to do pretty much the same thing in Vista to install software (provide the local Administrator password).