Can't Delete Webmatrix Site
From the "My Sites" view, one-by-one I selected several web sites I wanted to delete.  For each I was given the option of "delete site" or "delete site and content".  I chose "delete site and content."  

However, when afterward I chose to re-create one of those deleted sits Webmatrix says "A site named 'MySite' already exists - You will need to enter a different site name."

What do I need to do to make WebMatrix REALLY delete a site?  Why didn't it completely delete the sites I requested in the first place?
Can't Delete Webmatrix Site
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From the "My Sites" view, one-by-one I selected several web sites I wanted to delete.  For each I was given the option of "delete site" or "delete site and content".  I chose "delete site and content."  

However, when afterward I chose to re-create one of those deleted sits Webmatrix says "A site named 'MySite' already exists - You will need to enter a different site name."

What do I need to do to make WebMatrix REALLY delete a site?  Why didn't it completely delete the sites I requested in the first place?