Can you boot from USB?
No, also not from the SATA controller in AHCI or IDE mode.Not from an IDE HDD, and when I try to boot from the CD- Rom I have also a black screen with a blinking small white line in the upper left corner.
BTW.: If I try to boot a R5 BEOS there comes at least the boot screen with the symbols an I can select options when I press space, but NOT when I try to boot haiku :(