AMT should provide the right image, it's risky for me to try to extract and provide it - you could blame me for giving you a bad image or problems down the line.
I tried the updated image that was posted on dropbox on another usb flash card and I got the same problem you're seeing, going back to using original image, I didn't experience this issue, so just passing on my personal experience.
Thank you for the reply! So it seems that I have the newest image (which doesn't work). I understand your concern about providing me an extracted image - maybe someone else has one handy that they know works :-)
There you go, try that image.