Autodesk Maya: Help Line Becomes Unresponsive

Sometimes when working with Maya, Help Line might become unresponsive. That's one of the billion bugs of Maya. To fix that, just select and move (undock) the Help Line window then dock it again. This will refresh the Help Line and it will work again. 

PS: I tried this on Maya 2012. Don't have an idea for other versions but it should work on other versions too.