make a terrain thats 2000 x 768 x 2000 .put a stock dte texture on it (say forested granite).
now make a terrain ,don't resize,put same texture on it, see the difference in how the texture is affected.
You can add as much or as little fractal as you want by clicking the marble and moving side to side.Can also mix the fractals together little at a time.Don't forget the erosion just a little.

"Reinstall Windows" is NOT a troubleshooting step.