how to make the terrain textures look better?

how do people make their textures look so good,I looked at videos and tutorials and they say i have to change the resolution of the terrain i changed that but still see no difference and if I change the tile size of the texture it looks a little better but then it looks blurry someone please help me.

use high res seamless textures like 1024x1024 or higher and use normal maps aswell

Go to Terrain > Set Resolution

Try to use ever multiples of 2, 1024x1024, 2048x2048

On the textures is the samething, the size must be multiples of 2, 32x32, 64x64, etc.

Done this you set the Tiling of the texture, you can use float numbers, 0,5 for exemple, but the best is use int numbers, 2,3,4 dont forget to change de x and the y of the texture

Ok, nevermind
Found out it was just my shitty Win XP
I got a new Windows 8 and it works fine
Thanks all for the help though