Final answer:
Users might upgrade a video card driver to fix an error message or to use additional features offered by the new driver version. Upgrading is not typically related to adjusting screen resolution, brightness/contrast, or standby mode access.
Step-by-step explanation:
There are several reasons a user might upgrade a video card driver, but based on the options provided, the two valid reasons are:
- To fix an error message: Upgrading a video card driver can address compatibility issues, bugs, or problems that cause error messages within the operating system or applications.
- To use additional features: Newer drivers often come with enhancements and new functionalities that were not available in older versions, providing users with more capabilities or improved performance.
Other options such as decreasing screen resolution or adjusting brightness/contrast are generally not directly related to drivers' updates, and accessing monitor standby mode is typically a feature managed by the operating system's energy settings, not the video card driver itself.