Why do the video-settings adjustments that I make in the Player go back to default values when I play a new video?
Windows Media Player doesn't retain video-settings adjustments between video playback sessions because non-default settings may not work for all videos. For example, if your video is too dark and you increase the brightness, the next video you play may be hard to see at that brightness setting. You may need to adjust the video settings for each video that you play.
If your settings appear to be consistently maladjusted (for example, all of your videos are too dark), try adjusting overlay or color values for your video card instead. To access video-card properties, do the following:
In Control Panel, open Display.
In the Display Properties dialog box, on the Settings tab, click the Advanced button.
Adjust properties for your video card by reviewing the documentation that came with your hardware.