interesting, because your msn version is 9.0.1407.1107, and this is first beta of WLM9 (anyway, this is not usable since the new wave3 beta published), and the version of lmcdata.dll (this is a shared component for live programs, like messenger/mail/etc.) is 14.0.5027.908, which is an wave3 beta version.
i suggest that uninstall all windows live components (windows live messenger/windows live mail/etc.) with "add/remove programs", and install it again from
http://download.live.com (check the component what you wanna use).
btw you can check the file versions here (if they are different, the msn won't work):
c:\program files\windows live\contacts\lmcdata.dll
c:\program files\windows live\messenger\msnmsgr.exe
(right click, properties, version tab).
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