First,
This is an OLD forum for Windows Live Writer; Microsoft will be shutting it down soon [to be read only]... But there's a NEW forum, with more activity and more Microsoft techs working it. I suggest you go there and resubmit your inquiry there...
Here's the URL:
http://windowslivehelp.com/forums.aspx?productid=9
Second,
ensure your running the latest version... The beta 2011.
If not already, download the beta...
http://explore.live.com/windows-live-essentials-beta
lastly, refresh your theme with Windows Live Writer and see if that helps.
In that order...
Just trying to help...
Until next time,
LEHenryJr