I am having the same problem.  Did you ever find a solution?

This happened to me a few weeks ago.  I downloaded a new version from the manufacturers website and installed it.  Unfortunately, i don't remember if I went through the link on the start menu or did it manually.  However, since installing the updated version, I've had no problems.  sorry I can't give you more information.

Thanks.  I also found another solution.  If you turn off User Account Control, it allows the updater to run.