9.3 Using Self-Configuring Display Adapters Some display adapters can change their configurations to match what an application tries to do. For example, if an application tries to use a video graphics adapter (VGA) configuration and your display adapter is currently configured as an extended graphics adapter (EGA), the adapter can switch from an EGA configuration to a VGA configuration. This type of display adapter makes use of non-maskable interrupts (NMIs) to change its configuration while you work. To use this type of display adapter with Windows running in 386 enhanced mode, you must disable the NMI (also called self-configuring, auto- switching, or auto-emulating) option. First, configure the display adapter, and then disable the NMI option. For more information, see your display-adapter documentation. .