Question: My computer is a Vista system and has a screen saver. When watching a movie, the screen saver pops up when the time is up. How can I set it up so that I can watch movies without being disturbed by the screen saver?
Answer: The easiest way is to set the screen saver time longer.
In addition, many video players can be set to prohibit entering sleep state, screen saver, and turning off the display when playing videos. For example, in Fengxing Player, you can see relevant options in its "Options" → "Playback Settings".