I followed the instructions + the post regarding 1920x1080 monitor, but it doesn't stretch the D2 window. Instead it adds black borders around it to reach the specified resolution, which is pointless.
Also, if anyone has any ideas. I'm having an issue with the game stuttering. It's quite noticeable when moving, and the fast pace of MXL makes it stand out even more. I've been messing with the glide wrapper settings, running fullscreen, using nvidia control panel vsync instead, etc. Nothing has made a difference, and I'm on a 4790k + 980Ti on Windows 7.