Texture problem

I've got a fast comp, and got a good fps. I went in and maxed out everything and still get 35-40 fps.
The problem is:
Bridges and roads now are very grainy and look like sand.
I could go back to default and start over, or does someone know which setting causes this?
Thanx in advance
Ps.
Thanx to Simviation for a GREAT site!
The problem is:
Bridges and roads now are very grainy and look like sand.
I could go back to default and start over, or does someone know which setting causes this?
Thanx in advance
Ps.

Thanx to Simviation for a GREAT site!