2. Click on the lower right corner to switch to fast mode, and then switch back to reopen QT video.

3. If it doesn't work, uninstall, log off and reinstall flashplayer with tools such as 360 or Jinshan Butler.

4. Reinstall the graphics driver.

5, QT voice open video application method:

1) After entering the QT language lab, click the application box to see the video application, and click to enter the video.

2) After that, the QT audio-visual application page will be displayed, and click the Settings button in the upper right corner to enter QT audio-visual settings.

3) Check the checkbox to open the video application, and then paste the video address below the video mode to watch the video.