Have downloaded Ubuntu Server 14.04, 64-bit. Have also downloaded Virtual Box 4.3.10 (which supports 64 bits). My operating system is Windows 7 - 64 bit.
When I configure Virtual Box for Ubuntu, and name the new file "linux ubuntu," the system type changes to "Linux" and the version changes to "Ubuntu 32." There isn't an option for "Ubuntu 64," which seems to cause a problem later when I try to run Ubuntu within the Virtual Box.
What is happening? I'm on a 64-bit system, I've downloaded a version of Ubuntu that's for 64-bits only, my version of Virtual Box is the newest, and allows for 64-bit systems. Why am I not seeing an option for "Ubuntu 64-bit" when I try to create an Ubuntu file within Virtual Box? How do I fix this problem?