Re: installation on new hard drive. No prior OS
Second, it's Ubuntu, not Umbutu.
Your friend is probably thinking of the difference between MBR and UEFI. This is only an issue if you're setting the machine up dual-boot, and it wouldn't cause problems until after you had installed both systems. Definitely not true in your case.
More likely it's a graphics card issue. (Not that you have a bad card, it just might not be supported in the default mode.) Since it's a custom built machine, I assume you could provide details about the graphics card...
Jane, stop this crazy thing!