9.7 Third-Party Display Drivers: Running Non-Windows Applications If you are using a display driver that is not provided with Windows version 3.1 and you receive one of the following messages while trying to run a non-Windows application: "Incorrect system version. Run the Windows Setup program again." or "386 System display type mismatch." contact your display manufacturer for an updated driver. You can also solve this problem manually by installing 3.0 driver files. These files are included on the Windows version 3.1 disks. If your display driver works in Windows version 3.0 using the standard VGA virtual-display-device file (specified by the device=*vddvga setting in the [386Enh] section of the SYSTEM.INI file), then do the following: 1. Copy and expand the VDDVGA30.386 file from the Windows 3.1 disk to your Windows 3.1 SYSTEM directory. 2. Change the display= setting in the [386Enh] section of the SYSTEM.INI file to: display=VDDVGA30.386 3. Restart Windows. If your display driver works in Windows version 3.0 using the standard VGA grabber file (specified by the 386Grabber=VGA.GR3 setting in the [boot] section of the SYSTEM.INI file), then do the following: 1. Copy and expand the VGA30.3GR file from the Windows 3.1 disk to your Windows 3.1 SYSTEM directory. 2. Change the 386Grabber setting in the [386Enh] section of the SYSTEM.INI file to: 386Grabber=VGA30.3GR 3. Restart Windows. .