Ok, I'm pulling my hair out on this one, so if you have any ideas, please help. I've created a 4GB USB Flash Drive with Vista SP1 on it and it can be booted just fine from my Dell Laptop, but with my Gigabyte, the boot just locks up when it accesses the flash drive. I have USB-HDD set as the boot device in the BIOS and I've also tried USB-FSD, USB-ZIP and USB-CDROM but only USB-HDD causes the flash drive to be accessed on boot but it just hangs after showing the post screen. System boots fine as soon as I take out the USB thumb drive. I tried updating to the latest F9A bios, but same thing. Any ideas?