[CentOS] Openwebmail emergency (Perl)

After system update yesterday, Openwebmail now gives an error:

> Undefined subroutine &Compress::Zlib::memGzip called at /var/www/cgi-bin/openwebmail/shares/ow-shared.pl line 1175.

I tried to do

perl -MCPAN -e shell
install Compress::Zlib

But it says Compress::Zlib is up-to-date. What do to?? I cannot find an 
answer by googling.

- Jussi

-- 
Jussi Hirvi * Green Spot
Topeliuksenkatu 15 C * 00250 Helsinki * Finland
Tel. +358 9 493 981 * Mobile +358 40 771 2098 (only sms)
jussi.hirvi at greenspot.fi * http://www.greenspot.fi