Editor Not Working?

[The Twilight]

I'm currently on a Windows Vista and I seem to be able to play the game very smoothly + fine, however I can launch the editor but with a different result. When I try placing a doodad, it comes out as nothing. I can select the doodad, and sometimes a small patch of particles pop up, but it remains unseen. This also happens with water and hills. When I place water and surround it with hills, the borders of both seem broken and pixelated.

Help?

 

[Wezthal]

Maybe add a screenshot? It might helpful for the troubleshooting.

 

[Agarwa3n]

Go to File -> Preferences then choose the Video tab. Uncheck the "match game settings" and play a little with the options. See if you can locate the problem.