If you are having problems loading the video driver on your computer, you may have a program that has replaced some files. Symptoms of this problem include:
The system continues to default to VGA mode or only boots in VGA mode from the boot menu.
Your video driver is not loading properly.
Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
322756 How to back up and restore the registry in Windows
To verify exactly which video drivers that your Windows operating system is expecting to load:
Start Registry Editor (Regedt32.exe).
Go to the following location in the registry:
The Device\Video0 value points to a registry key that has the location of the video driver that Windows is configured to load.