Q: Why won't the system accept the hardware password when booting single-user? I know I'm typing the same password that I originally set.
A: The ROM password only has 6 characters. You may enter more when setting the ROM password, but only 6 are stored. However, when you boot single-user and it asks for the password, it will complain if you type more than 6. Just type the first 6 characters and all should be fine.