I've recently installed the Guest Additions CD on my windows VirtualBox running Ubuntu 14.04. It was working great for a while - screen resized automatically, etc.

However, when I turned off my host computer and restarted it today, the resolution suddenly reverted back to its pre-Guest Additions CD state. However, when I try to re-install the CD, it says it is already loaded.

Does anyone know if there is another way to get the screen back to resize?


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