Disallowed Library name

I’m working with the Sparkfun 6DoF IMU and ended up with a disallowed library name in my Arduino Library folder. I’ve changed the name in the Library folder but when I run 1.6.5 -r2 on an XP machine the original name still shows up and the valid name does not. Doing a Search reveals that the disallowed name doesn’t show up anywhere in the Arduino directory.
I would expect that the Arduino/genuino would scan the libraries each time it was started up?