hello, i've played oblivion on my ps3 for hundreds of hours, and i wanted to greatly enhance my experience by playing it on my gaming PC. the problem is, when I got outside of the sewers, the distant land is blurry. here's a pic of what i'm talking about http://imageshack.us/photo/my-images/534/oblivion201111051950396.jpg

What can I do to fix it? And also, the ground was purple until I deleted my shaders and installed new ones, something to note. So I've tried forcing anistropic filtering with the nvidia control panel, setting all the settings to max, then to lowest, adding a texture pack but nothing works. I'm on patch 1.2.046 with a gtx570, i5 2500k, and 8gb of ram. Thank you

Doesn't look like you have the 1.2.0416 patch. That adds a filter effect to improve distant land.