I have a XFX Radeon HD4650 and the most upto date Drivers, and Catalist Controls! I Turned the Advanced lighting off, and hey presto the pixelation lines dis-appeared. HOwerever, i still get them around Buildings, trees, players etc. I just cannot work it out!!! 
 
Here is my Full Specs. Might help. 
 
AMD Athlon 64 3800+ O'C @ 2.8 GHz 
2Gb DDR400 PC-3200 
Windows 7 Ultimate 32-Bit 
DirectX 11 
XFX Radeon HD4650 1Gb DDR2 PCi-E 
 
Anything missing let me know. 
		
	
		
		
		
		
		
		
		
		
		
	
		
		
	
	
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