When you click on a menu title [A], then move the mouse to the next menu title [B] on the right, this will result in the title [A] having garbled text: namely the title of B will be superposed with that of A. Doing this multiple times results in almost all the menu title being superposed with each other.
menubar: [ Alpha ] [ Beta ]
Alpha looks like:
[AB][le][pt][aa], where [xy] represents the superposition of x and y, e.g. [TK] looks like R