[exim] Exim solution

After the upgrade from etch to lenny, and replacing the old
exim4.conf.template with the once from the lenny package, I get this error
in the paniclog:

Exim configuration error in line 31 of
/var/lib/exim4/config.autogenerated.tmp
when i restart the /etc/init.d/exim4 it show the error

DEBCONFsomethingDEBCONF found in exim configuration. This is most probably
caused by you upgrading to exim4 4.67-3 or later without accepting the
suggested conffile changes. Please read
/usr/share/doc/exim4-config/NEWS.Debian.gz for 4.67-2 and 4.67-4
2007-07-03 02:23:29 Exim configuration error in line 31 of
/var/lib/exim4/config.autogenerated.tmp: malformed macro definition
Invalid new configfile /var/lib/exim4/config.autogenerated.tmp, not
installing /var/lib/exim4/config.autogenerated.tmp to
/var/lib/exim4/config.autogenerated

Is it a bug from exim. Any solution from this issue