Self Shadows Quality

[Zigan18]

Well first off here are my system specs. I can usually run most games on high including this one without much annoying lag.

 

Intel Core 2 Duo E6300 (1.8ghz)

Nvidia 7900GS 256MB

2 GIGS DDR2 RAM

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If anyone can figure out why the self shadows look kinda pooty... like this:

 

http://i201.photobucket.com/albums/aa314/kilara18/Image1-1.png

 

Let me know. >_<;