I have spent the last 12 hours trying to get this to work. - I created the Virtual Machine using vagrant and Virtual Box. - I have tried on both a Windows 8.1 AMD64 host and a Mac OS Mavericks host. - I successfully accessed the VM with vagrant ssh (Mac) and Putty (Windows) - I tried updating Guest Additions to match the version of Virtual Box I downloaded (4.3.6 on both hosts). - I tried adding the user "vagrant" on the guest machine to vboxsf group. - I can see in the Virtual Box GUI on the host machines that the three folders are correctly mapped. - In the command line on the VM, I enter ls and none of the files from my host are there. - I use mkdir to create a directory on the VM and it doesn't show up anywhere on the host.

I don't know what else there is to try. I've tried destroying, reloading, etc to no avail. Any help is greatly appreciated.