I just installed the latest version of opensuse on virtualbox just to learn some stuff and I'm having some strange problems with my mouse. Sometimes while I'm just moving my mouse around not clicking anything all my open windows do this sort of alt tab behavior where it shows all of the windows for a brief second aligned in a sort of tiled fashion. For instance, if I have 4 different apps open they will all resize to fit one in each corner top right, top left, bottom left, bottom right. Then almost as quickly as they came they disappear and sometimes my windows switch to a different app that I wasn't working in at that time. I'll try and grab a screenshot the next time it happens.
On top of this, my scroll wheel doesn't work in most applications (it does in terminal and chrome but not firefox and other places I thought it'd work). Now this may be just how linux is, but it seems weird that it is.