| TROUBLESHOOTING VESA Drivers If you are having issues with DOS / Super VGA (VESA) Programs, make sure that the program is compliant with versions 1.2 or 2.0 of the VESA standard. Some programs may be written for certain chips to run in Super VGA modes that are not VESA compliant. AutoCAD DOS drivers Ensure that the variables are set correctly, usually being acad and acaddrv. General video card troubleshooting: See our general video card
troubleshooting page which lists complete information on computer video cards. | 
