Intellij Idea 14 - disable highlighting level messages

I recently moved from Eclipse to Intellij idea and i'm trying to customize it. I was wondering whether is posible to disable the description popup messages on the highlighting level, I don't want to disable the inspections, only the message because when the cursor is over the scrollbar, the popup blocks the scrollbar. I've already searched in settings, editor, inspection, but i haven't find how to disable it:

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Solution

Right-click scrollbar > Customize Highlighting Level > Switch to "None"