@SBG, Try updating your graphics card drivers, if you need help doing this, I am happy to tell you how it's done, and I am sure others here will as well.
If that fails go into the DukePlus menu, I think in effects there are options that will be set to "use OpenGl" make sure they are NOT set to this, this might fix the texture problems.
Or, if you want to risk crashing EDuke32 to see if you can get OpenGL, go to you duke folder, right click DukePlus.bat and click "Edit" Notepad will open and you will see this (or something like);
@echo off
cls
echo.
echo DUKE PLUS
echo.
echo by DeeperThought
echo.
EDuke32.exe -game_dir DukePlus
change the last line so it looks like this
EDuke32.exe -forcegl -game_dir DukePlus
Now save the file and use use it to launch EDuke32 with DukePlus, this will attempt to force OpenGL to work on your machine, but it may not work or even cause a crash in EDuke32 (More likely it will just revert to Software rendering).
To launch EDuke32 without DukePlus, but force OpenGL, open notepad and type
start EDuke32.exe -forcegl
Now save it as something like "EDukeGL.bat" in your Duke folder and try running it.
Hopefully, at least one of these will work.
@DeeperThought, I knew I forgot something I wouldn't mind seeing implemented, this one might not be as awkward as doors and stuff, basically, when you look at the 2D map, it would be rather cool if you could see enemies and stuff, like how 3DR wanted it at some point. dunno how hard that would be to add.