man missing !

[franck routier <f.routier@wanadoo.fr>]

hello,

for a few days, when I type 'man xxx', I get the following error message :

bash: man: command not found

However, I have installed manpages and man-db packages :

socrate:/home/alci# dpkg -s man-db
Package: man-db
Status: install ok installed
Priority: important
Section: doc
Installed-Size: 716
Maintainer: Fabrizio Polacco <fpolacco@debian.org>
Version: 2.3.17-3.2
Replaces: man, nlsutils
Provides: man, man-browser
Depends: groff (>> 1.15-3.ja.3) | jgroff (>> 1.15), libc6 (>= 2.2.1-2),
libdb2
Suggests: bsdmainutils
Conflicts: man, suidmanager (<< 0.50)
Conffiles:
 /etc/cron.daily/man-db cb64d563929901997edfe798a3dca2ee
 /etc/cron.weekly/man-db 85baf175ee93f0677091328ac1a59e7c
Description: Display the on-line manual.
 This package provides the man command. This utility is the primary
 way of examining the on-line help files (manual pages). Other utilities
 provided include the whatis and apropos commands for searching the
 manual page database, the manpath utility for determining the manual
 page search path, and the maintenance utilities mandb, catman and
 zsoelim. This package uses the groff suite of programs to format and
 display the manual pages.

Is there any explanation to this ?

Thanks in advance,
Franck