Today Twitter changed the way that you sign into Twitter. Over the last few months you might not have even know that your favorite Twitter application had been updated with this change. You were prompted to take a new version and you just updated. In the case of the Windows Live Writer plug-in Twitter Notify there was no way to notify that you needed to update. What you would see is that you tried to log in with your user name and password and you would just see a dialog that your user name or password was incorrect as you went to post your blog post.
Have no fear there is a new version of Twitter Notify in the Live Writer plug-in gallery that works with the changes that Twitter has made. You just need to install it from the gallery. Here is a link.
Thanks to Will and Ron for their hard work to turn around the fix on this. Also thanks to Joe Cheng for the reminder that it needed to be updated.