gv won't install

[ewan]

Just install kubuntu. Had fewer problems than any other distro so looking good.
Installed emacs, fine.
Installed g++, fine.
Installed make, tcsh, and tetex, all fine.
install gv - not fine:

sudo apt-get install gv
Reading package lists... Done
Building dependency tree... Done
Package gv is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package gv has no installation candidate

Any ideas what's going on here? (I also tried building gv from source, but ran into problems with Xaw3d). This is 6.06
thanks.

[kubicle]

Re: gv won't install

Have you enabled the 'universe' repositories...gv is in universe?

You can enable universe by uncommenting the appropiate lines in /etc/apt/sources.list

[ewan]

Re: gv won't install

Yes, that's done it. Thanks! (And now that I know what I'm looking for, I find all kinds of help for what "universe" means.. sigh)