Crazy arduino IDE. How to solve? 49s Video showing the problem

Using Arduino Installation & Troubleshooting
#1

Do someone know how to fix it?

The problem occurs when I load a new example.

I do not know how to search for this problem. So I record a small video showing it:

Please, watch in 720p.

Thanks

#2

My first guess would be that there is something wrong with your copy of Java. Perhaps you should update or re-install Java.

#3