I have a new problem. My server locked up installing Linux and I had to reboot it. Now when the VM starts up, it won't run Linux at all. Can I just delete the Virtual Box VM directory that contains the .vdi files or do I have to delete the machine and start a new one?

On a side note, my server is a 64 bit system; however when I run the VM it won't let me install the Linux 64 bit iso it will only let me install the 32 bit iso. What's that about?