Do you know how to use dos, I mean:
dir/w
cd\
If you know that you can find the files and then flash them.
So it looks like:
NVflash C:\bcd\bsd\apps\original.rom
Or something along those lines.
When flashing make sure to type the full extension of the file exactly like this:
"nvflash R:\bios_name_in_cd.rom"
Make sure it looks exactly like this and it will work, I got the same error because I didnt put the .rom...
Warning if you have three voltages I would highly not recommend modifying anything.
If you have 3 Voltages I am guessing you have the NV41 Board as I do which it appears Nibitor does not yet support. (you can check on the first...