I am running VirtualBox (4.3.6) on Mac OS X (10.9.1). I just upgraded my virtual machine from Windows 8 to 8.1 (Enterprise).
I installed Google Chrome in the virtual machine, but when I launch it, it looks like this:
Opera also has this problem, so I suspect it has something to do with the Webkit engine.
I have uninstalled and reinstalled Chrome and deleted any Chrome settings from my AppData folder. I have never seen this before. What is causing it and how can I fix it?