http://www.doomworld.com/idgames/index.php?id=12283
first problem, the sky doesn't get displayed for some reason (it works in prboom)
second issue I noticed, in e3m4 the windmill textures don't get shown, but they're there in prboom as well
I dunno if there's similar issues with the doom2 version or the original version (which was released in a bunch of disjointed wad files) because I haven't tested those recently, though I did play the original version of aod doom over the summer with 2.0.47 in coop and everything looked fine