My LFS has suddenly became blurred. I tried completely uninstalling the game and reinstalling it without success. It seems to affect all the car skins and the environment in the game as well. Also the LFS logos in the ''welcome'' screen and the previews of the tracks in the menu. Is there any way to fix this?

Did you update your graphic drivers recently? IIRC this happens when it uses low res/compressed DDS files.

I haven't. I will try to use System Restore.

Using system restore to get it back to P7 fixes it, but when I update it to Q it becomes blurred again.

Did you check the mip bias sliders under Graphics? Maybe that could fix the road/grass problem setting them to negative values.

But still, 0.6Q didn't replace any shaders/dds files, so this is really strange.

see your DirectX mine was so it was him

Changing mip bias doesn't change anything. DirectX isn't the problem.

Changing Mipmap detail level fixed it. Thanks for the help.

Quote from Sinobad :

Changing Mipmap detail level fixed it. Thanks for the help.

Glad to hear!