virtualbox crashes ubuntu 16.04 vm's

Host: xubuntu 16.04 amd64 Guests: xubuntu 16.04 and lubuntu 16.04

The vm crash right away when booting for the very first time from the desktop iso's. The screen gets garbled. And that's it. The picture shows the xubuntu 16.04 screen. Lubuntu's 16.04 looks evenly strange.

Lubuntu lets me select a language. Xubuntu crashes after the dot animation. xubuntu 15.10 seems to install properly.

Is this a known problem ?