Do you have access to a Disk Editor (like Disk Director) that can verify if the MBR and boot sector is written correctly? I assume you already tried restoring the "empty" images from my link. Did you do this in Windows or from TI's Safe Mode? Did you try all of them or just some? Have you tried booting a USB hard drive? The computer may detect it differently than a flashdrive. This would just be a troubleshooting step as it would help determine if Acronis's recovery setup will boot on the computer from a USB device. Does TI boot successfully from the TI CD (both the Full and Safe mode versions)? If you have a BartPE or VistaPE flashdrive, does it boot correctly?