Windows Live Writer Error

[Nerwin]

I also use Windows Live Writer to type my entries for my blogs, its been working very well and recently I want to embed a video a found on YouTube and when I go do that it comes up with an error.

This is what the error says:

Windows Live Writer has encountered a problem: Unable to cast COM object of type 'System.__ComObject' to interface type 'WindowsLive.Writer.Interop.Com.IViewObject'. This operation failed because the QueryInterface call on the COM component for the interface with IID '{0000010D-0000-0000-C000-000000000046}' failed due to the following error: No such interface supported (Exception from HRESULT: 0x80004002 (E_NOINTERFACE)).

I attached a screen shot as well.

I don't know why its doing this, I can always reinstall the application. But I rather not set up all the blog accounts again.

So what do you think the problem is?