Solution
Please Install the Updated Packages.
Insight
Mandriva Linux 2007.1 shipped with a beta version of Mozilla Thunderbird, so this update provides the final Mozilla Thunderbird 2.0.0.0 release, with updated translations and Enigmail support.
This update also adds support for Belarusian (be), Bulgarian (bg), Danish (da), British English (en-GB), Irish (ga-IE), Lithuanian (lt), Macedonian (mk), Norwegian Nynorsk (nn-NO), Portuguese Portugal (pt-PT), and Traditional Chinese (zh-TW).
Finally, the language support for cs, nl, pt, sk, sl, and es_AR are currently disabled for Enigmail due to lack of upstream updates.
Affected
mozilla-thunderbird on Mandriva Linux 2007.1,
Mandriva Linux 2007.1/X86_64