What is the version of your file?
Have you tried downloading the .dll from the internet and overwriting the original one? (from http://www.nodevice.com/dll/MSCMS_DLL/item10619.html for eg..)
]]>I formatted my laptop and started over. I’m prone to do it every few months anyway, and it seemed like it was probably due for it.
I wish I had a better answer.