I've tried everything you said, but I still have the bank 0 problem. I've tried making the bootdisk just like you did, but then - for some reason - i can't boot to DOS. If I use the other HP tool, then everything works fine: I just select the USB drive as first boot device in drive boot order. If I use your HP tool, my USB key doesn't show up in the drive boot order list and selecting USB-FDD as first boot device doesn't help either.
Perhaps you can check out
my post and see if you have any other suggestions?