Hi.
I found a plug-in called Glide64"Naplam WX", and it fixes every graphic bug in Conker BFD, so the configs are:
Slow PC:
-Othe-r
Show Texture Enhancement Options
-Texture Enhancement-
Click Best performance

Fast PC
-Other-
Show Texture Enhancement Options
-Texture Enhancement-
Click Best Texture Quality
Fliter = Smooth filtering 4
Enhancement = HQ4X

And this is a fix for this game and maybe for other games too, if you see conker with white head it's your graphics card.