In a Ubuntu host Virtualbox 5.0.x always freezes after a few moments. Whatever Ubuntu I use, whatever Virtualbox 5.0 version I use, whatever distro I install as guest, always happens the same: I log in the desktop and after a few moments Virtualbox freezes, then have to force restart.
However, this doesn't happen with Virtualbox 4.0.
Please, how could I fix this? It's very annoying, specially if it's upgrading the kernel.
Thank you very much and best regards!!