This was a CD install
Not terribly bad, just very weird.
In fact, you can backspace all the way up to and through the image, eating it
away block by block.
If you backspace past the prompt, any command you type gets nulled (e.g. "Could
not find kernel image:" with nothing after it).
Is this on the syslinux/isolinux splash screen? I can't reproduce it on my test
box here, so it could be a bios bug, although that seems weird
Ok. When the prompt first appears, the bug does not manifest.
Try viewing F[1-5] a few times first. You may also need to type a character or
two on the line.
Ok, to make this bug appear, press F6, then try backspacing.
I believe this is fixed.