I also fixed it by using the "Screens and Graphics" utility. I choosed the screen "LCD 1024 x 768" and the graphic card "vesa", Now the A21p work good in the resolution 1024 x 768
I also fixed it by using the "Screens and Graphics" utility.
I choosed the screen "LCD 1024 x 768" and the graphic card "vesa",
Now the A21p work good in the resolution 1024 x 768