Brit44Aldo: The simulation side will run in windowed mode and 32 bit desktop color. Set windowed mode in 3D config, then launch a mission from the full screen menu. The simulation will switch to a 640x480 window and run.
The user menu does not use directX and was not written to run in 32 bit color mode. If you try and run the user menu in 32 bit windowed, it will look like the attached image. If you know where to click, it will work.
Another option would be to run PE in a 3rd party emulator. I know the Europen Air War community is doing it, but I forget which program they are using.
Yeah, I had that same problem with the attached image as well. It's a shame that there isn't a mod that can make the gameplay run in windowed-mode around 1024x768 or larger. I guess I'll just have to use the full-screen mode instead. But thanks for your input about the config files.