Comment 7 for bug 1103014

Oh, and I installed mkvtoolnix via ppa from the developer's website:

http://www.bunkus.org/videotools/mkvtoolnix/downloads.html

Still happens, no matter which version of mkvtoolnix I ever used. It's a problem of those overlay scrollbars. I experienced it in other applications as well, no matter if a fresh install of Ubuntu or not. However, mkvtoolnix is the application I remember at the moment after I experienced it again today.

There is also a sometimes problem of horizontal overlay scrollbars covering buttons that are below in case those buttons are very close to the scrollbar area. Those buttons then cannot be clicked. However, I can't remember which application it was where I experienced this.