Full screen mode with different screen resolution

You can modify the graphic mode for the full screen display in the player settings. When switching the screen resolution Windows can only assign a fixed or no frame rate at all. Since we can't know your graphics card/monitor combination we omitted the assignment of a fixed frame rate. This was done to prevent any danger for your monitor. Windows automatically switches to one of the possible modes, which you can change yourself. (see Control panel -> Display -> Settings)

This hint is only of interest if you want to work with a modified full screen mode. The problem does not exist in window mode.