making /usr/local/bin accessible

[Milos Prudek]

I am new to Ubuntu. 

How can I make Ubuntu run a binary file in /usr/local/bin, when such file 
compiled from sources has a same name as a REMOVED/DELETED file from debian 
package that used to be in /usr/bin?

- /usr/local/bin is in my PATH
- shell files that I create in /usr/local/bin can be run from any directory.
- but binary file compiled from sources that REPLACES a deb package file does 
not run unless full path is specified.

Details:

I want hnb (Hierarchical Notebook). I installed it via apt-get and it 
installed into /usr/bin but it exhibited some errors, so I removed the hnb 
deb package. I got hnb sources, compiled and installed them. The hnb binary 
is in /usr/local/bin. Under the superuser, hnb runs without specifying the 
full path. Under non-privileged user, running hnb without specifying the full 
path results in this error message: 

-bash: /usr/bin/hnb: No such file or directory

I have never seen this behaviour under Mandriva. What configuration is 
responsible for this?

-- 
Milos Prudek