Dennis McLeod wrote: ... > Thunderbird 2 w/ Lightning (calendar plugin) on XP here...... BTW, why can't I install lightning on a centos 5.1 x86_64 machine? If I download it from: http://releases.mozilla.org/pub/mozilla.org/calendar/lightning/releases/0.7/contrib/linux-x86-64/ it says that the architecture Linux-x86_64-gcc3 is wrong. It works on Fedora 7 x86_64. I even tried building lightning from source, same error when installing in thunderbird. Mogens -- Mogens Kjaer, Carlsberg A/S, Computer Department Gamle Carlsberg Vej 10, DK-2500 Valby, Denmark Phone: +45 33 27 53 25, Fax: +45 33 27 47 08 Email: mk at crc.dk Homepage: http://www.crc.dk