Whenever I try to resize the Scratch window, it turns black as below and slowly reduces in width until it's a line on the screen.
If I try to maximise the window, it also turns black but the width doesn't reduce. However, when I minimize/unmaximize it, it behaves as when I try to resize it.
I cannot close the window once this happens and have to do it from system monitor.
Anyone know the cause of this problem and how to fix it?