Kigen's Anti-Cheat

i banned from KAC and the reason is Cheating. KAC ID:6.6
but i didnt cheat at all, and i found out maybe cause by my autoexc.cfg

here what i have in my autoexec.cfg
cl_showfps 1
fps_max 100
r_3dnow 1
r_3dsky 0
r_drawrain 0
fog_enable 0
r_shadows 0
r_rainsimulate 0
r_dynamic 0
r_decals 10
mp_decals ...