Intellij Messages tool window always show at (re)build errors

Hi, 

I'm using Intellij IDEA Community Edition. In the settings, the "build project automatically" is checked. 
At each time the build is launched, because I go on an other application, the Messages Tool Window appears if I have errors at the compilation.

This is very annoying because I generally just check something on the web and come back 2s later and the window just automatically opens to tell me I have errors in my code.

I want to keep this errors, but what I don't want is that this window always open herself.

I unchecked the "Automatically show first error in editor" that change my editor view to the first error that he found at the compilation.

How can I prevent this window to open if I have errors at my compilation ?

Thanks =)