Here is the process you should use. Uninstall your drivers. Turn the comp. off and back on, and let the video card be recognized as "vga compatible" or whatever it is the adapter is recognized as for the generic setting. Now install your new drivers. Restart. Now your new drivers should be in effect, and the registry should properly reflect the changes. At this point I always reinstall Direct X just to be safe, it can get corrupted sometimes during uninstall/reinstall operations. Now go to your game files and delete the video8.cfg file again. Now start Aces High. The video setup should pop up first thing and allow you to select your video card and basic settings.
If this is how you did it already, or if it doesnt work, send Skuzzy a copy of your Direct X diagnostic report, or post the first 1/3 of it or so here so we can look at the drivers and hardware installed.
Good luck!