Hey guys , I need someone to explain to me...or even recommend me how to set advanced settings in the " performance & quality " tab in my video card's settings

these are : 1-force mipmaps ? none bilinear and trilinear
2-conformant texture clamp on or off ?
3-extension limit? on or off
4-hardware acceleration
5-trilinear optimization? on or off
6-Anisotropic mip filter optimization? on or off
7-Anisotropic sample optimization? on or off
8-negative LOD bias? clamp or allow

my card's a MSI FX5700 LE card with 256 MBs of ram

Thanks in advance

set it to trilinear and everythign else to on or enabled. if you experience crashes or problems, disable the options one by one until the problem is corrected, thus exposing the offending setting.