To change video resolution, go into your "settings" folder and look for a file named "video8.cfg".
Use "Notepad" or some other simple text editor to edit that file. You will find two lines near the top that look like this:
1024,Width
768,Height
Those lines determine the resolution at which Aces High will try to run.
Edit those lines. For example, if you want to run at 800x600 resolution, change them to:
800,Width
600,Height
On older hardware, I sometimes run as low as 640x480. It's hard to read some of the instruments and I have to expand the clipboard a lot, but the framerate reward can be substantial.
Regards,
-Peabody-