I cannot get my Motherboard to boot from a Transcend 4Gb usb key, i have installed Ubuntu 9.04 on it as per instructions from APC Magazine. In the BIOS there are 4 options for booting from USB, - USB FDD - USB HDD - USB CD-ROM and another USB (ive forgotten what it was ).

I have tried all 4 but the PC just shows my Normal Dual boot screen (Vista and Win 7). I tried using the F12 button on my Keyboard and selecting USB, but it did not work. Is there something else i have to do to get it to boot from a USB Key.