I have a new R5-471T and updated the BIOS to 1.10. In the BIOS menu on the Security page (where one enters Supervisor password, etc.), the up and down arrow keys are not recognized, so I can't change any values. They work on other pages. The left-right arrow keys work fine. The Supervisor password item is highlighted - I can press Enter and type in a password, but I can't advance to the confirmation field so I can't even set that!