How do I get the KB Power On Password to work on my mobo?

I'm trying to get this thing to work on my mobo but it seems like I can't.

I moved the 5VSB PS/2 power jumper on my motherboard and set the KB Power On Password option in the BIOS but the computer won't turn on when I enter the password. Though if instead of a password I choose a hot key, like CTRL-F1, it will turn on. Now I say what the heck, am I doing something wrong? Do i have to hold a key when I enter the password or something, do you guys know how this thing works? :D