omg lol I didn't understand really ur problem, but if u mean the checked boxes 'reflection effect' & 'Light map' & 'Sader' & 'Dynamic Light'
this is really easy...
go to ur gunz folder, open the config.xml with notepad, or editor,
see this :
Code:
<VIDEO>
<WIDTH>1024</WIDTH>
<HEIGHT>768</HEIGHT>
<COLORBITS>32</COLORBITS>
<GAMMA>355</GAMMA>
<FULLSCREEN>TRUE</FULLSCREEN>
<REFLECTION>true</REFLECTION>
<LIGHTMAP>true</LIGHTMAP>
<DYNAMICLIGHT>true</DYNAMICLIGHT>
<SHADER>false</SHADER>
<CHARACTORTEXTURELEVEL>0</CHARACTORTEXTURELEVEL>
<MAPTEXTURELEVEL>0</MAPTEXTURELEVEL>
<EFFECTLEVEL>0</EFFECTLEVEL>
<TEXTUREFORMAT>1</TEXTUREFORMAT>
<NHARDWARETNL>false</NHARDWARETNL>
</VIDEO>
change the true & false
if you put true, it will be checked, if you write false it will be un-checked
don't forget to save it after modifying^^