Hi Per.
All these graphic changes can be very complicated, and have untold effects on the game, even though the idea seems quite simple.
This was the result of a try to improve fps by stopping the exe from changing states all the time.
If the game runs in D3D on your computer, then there is no problem. I've been testing everything we have added to the game, and I've seen no performance loss, fps between 20 to 60 depending on the view.
Allen is right though, Glide is a virtually dead graphics system, and there really is no point in spending time to fix the code for a small minority, when there are far more important things to fix, like the deadly 7217 error, which effects a much larger group of people, and is the main reason for the drop in popularity of EAW.
As to OpenGL. I think Sydbod is busy working on his new EAW flight Sim engine.
Info here:
http://mogggy.org/TheGen/viewforum.php?f=34