Using a graphical user interface
If Windows auto-detected the video adapter you have, or defaulted to Standard VGA Adapter and did not install the proper driver, your display capabilities will lack many features. It is rare that one generic video adapter driver will work for all implementations of a particular video chipset. An nVidia or ATI chip built into your motherboard will have different video BIOS and features and require a different driver than the same chip used on a plug-in video adapter. The wrong driver may not be able to support all of the video memory, scan rate, or color depth features the adapter is capable of. Installing the exact drivers for your video adapter will ensure all of its features and functions are available. Another hint: if the option is available, enable the IRQ for video setting in your system BIOS setup program many video card features require an IRQ assignment to function properly.