Expected app to launch without Fatal Error
Docker can't work without issues if Virtual Box prior to 5.x can be found.
Error message is a little unclear. Maybe change it to:
"I found an old version of VirtualBox (4.3). Docker needs version 5.x or greater."
Also: I thought we didn't need VirtualBox with this Docker for Mac.
Steps to reproduce the behavior
Install and launch on OS X 10.9