I really don't understand what you complain about. What do you mean by "not 4:3"? If the display had the wrong aspect ratio, it would be stretched in one direction. But if I compare your photos to other screen shots, for example
they have exactly the same aspect ratio. So how else do you expect the display should look like?
If you miss black borders around it, that's probably because the games use 320x200 resolution which de facto fills a 16:10 screen perfectly. You should be happy about it.
