There are two editors. Inside the Dark Basic Professional\Editor\ folder, there is "editor.exe" and "EditorNew.exe". Maybe you're not running the same executable and this is what's causing the different editor styles?
As far as using it on any computer, you will need the proper directx9.0c files on that computer. I'm not sure, but you may just need the proper directx .dll files inside your project's directory. I don't remember.
Everybody is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is stupid.