MANPATH

Hi,
I am using root 5.26 under ubuntu 10.10
in my .bashrc I run
$ROOTSYS/bin/thisroot.sh
it seems this set the MANPATH variable.
It seems that this disrupt man, after this no man command is working The manpath command answer:
manpath: warning: $MANPATH set, ignoring /etc/manpath.config If I do a
unset MANPATH
then the manpath command does not complain and root/man is found in the manpath command and a man root works as well as all other man commands.

Does somebody else then me has this man problems? Can we fix thisroot.sh?

Thanks

-- 
Nicolas Produit
ISDC, Data Centre for Astrophysics   Phone:+41 22 379 2140
16, Chemin d'Ecogia                  Fax:  +41 22 379 2133
CH-1290 Versoix                      www:  http://isdc.unige.ch/~produit