I've recently noticed that Skyrim seems to be loading different shadow maps/resolutions depending on a shadow or texture's proximity to my character. Here is what I am looking at...

The tree's shadow is mostly high resolution towards the base but low resolution and "blocky" towards the top.
http://img98.imageshack.us/img98/1367/screenshotbq.jpg

And as I move forward towards the tree the top of the shadow renders in a higher resolution.
http://img685.imageshack.us/img685/6821/screenshotago.jpg

A similar line of rendering can be seen anywhere there are shadows...

Messy shadows at a distance...
http://img151.imageshack.us/img151/8729/screenshot2ak.jpg

And a bit closer...
http://img266.imageshack.us/img266/9642/screenshot4b.jpg


I was wondering if there would be any way to alter the rendering line distance/resolution in either Skyrim.ini or SkyrimPrefs.ini or is this setting hardcoded? Alternatively is there a way to alter the shadows to blend these two resolution/maps. Any and all help would be appreciated.

Sorry, can't seem to be able to load the pictures I took... umm...