I have downloaded the current netinst and burned it to a DVD. When I boot it, the first screen I see shows the usual beginning with choices "Graphics Install," "Install," "Advanced".
I choose "Install" and press F10. The monitor then shows a row of what look like tiny screen images at the top, with the rest of the monitor all black. Crtl-Alt-F1, etc makes changes in the tiny images at the top, but the all-black rest of screen is unchanged. At this point, I'm just guessing. I tried repeating the process, except that I changed > linux /install.amd/vmlinuz vga=788 --- quiet to > linux /install.amd/vmlinuz vga=normal fb=false --- quiet and pressing F10. This gave me an all-black screen, no tiny row. I really hope somebody can tell me what "magic words" I should be using. (I tried "nomodeset" but that didn't help)