This is my doing. I am guessing you are not using HDMI for video... or we just cannot read the EDID from the specific display.
No, I'm using VGA, I don't have an HDMI out.
If you just press the corresponding number to your output (probably 3) at the FIRST screen which displays funky, it will fix itself. I am working to fix it. If you have an xorg.conf and it presents any issues at screen three (or what should be screen three) sudo rm /etc/X11/xorg.conf and reboot.
I'm afraid that didn't help; the number keys don't seem to do anything at all in fact. (The first screen is the one with the 15s countdown, is that correct?) Removing xorg.conf and rebooting didn't seem to make any difference either.
I am working to get around this. What is happening, is that it is putting out output on everything, but only trying to read EDID information from the HDMI connection. If there is no EDID data, it blows up to ginormous size at what I believe is 640x480 on screens 1 and 2.
That doesn't sound quite right; it's a little bigger than it should be, but only the very right-most edge is actually off the screen, whereas 640px is less than a third of the 1920 it should be. Assuming I'm interpreting you correctly and you mean I would be getting the leftmost 640 of the 1920 screen, anyway.
Oh, and just checking, it is OK to rerun the AV wizard for this, right? Like, by pressing shift at boot time? That won't affect it as opposed to running it at first boot?
Start by making sure your graphic card resolution on your PC or laptop can do 1920x1080.
I'm not really sure how to do that, I've just been assuming that if it can't handle it it'll just fail to output anything. If you know another way to test it I'd like to hear it, so I can either rule out or confirm that it's a hardware problem.