cannot find files or directories

[Verde Denim]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Could someone tell me why which and whereis cannot find a program
which has just been installed?

I just installed xCHM. If I go to the menu editor I find the name of
the program without a path (presumably because it can find the file in
the path).

But, I have a couple of chm files in an additional hard disk mounted
as /usr3, and neither xCHM nor firefox can see this.
( I tested ff by going to file --> open, and the directory does not appear).

I tried running updatedb after the install, but the program is still
not locate-able with either 'which' or 'whereis' ...

What am I missing?

Jack

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.7 (MingW32)

iD8DBQFIytdD8H6rxM1/qMYRAo/NAJ9rVeuchM8fq+1h2o49oRPO5PBcVACeNBtK
HxuYEdrfVMO1jMkDRLXomxU=
=NGbR
-----END PGP SIGNATURE-----
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.ubuntu.com/archives/ubuntu-users/attachments/20080912/f841dc8f/attachment.html>