I'm using Ubuntu Precise 64 bit as my host OS. I've created a VDI using Virtualbox 4.1.12. When I try using the 64 bit Kali 1.0.5 iso (downloaded today) as my CD Device, it hangs. I then deleted my Kali vdi & used the 32 bit Kali 1.0.5 iso, but that said that there was an error in the Install (after over 60% copying files) & refused to go further. What should I do?