L4d infected model problem

http://img168.imageshack.us/img168/9498/problemp.jpg
first im sorry (im not american so can use english very little)
l4d infected model(not special infected mdl) problem.
that screenshot…hmm…
models neck & wirst(?)…
wirst is no ragdolled
neck is… umm… you can see screenshot
how can solved that problem???
please help me.

Not understanding. Do you mean how it looks from afar?

:britain:

And looking at the spazzy neck I would say you’re using the smoker phymodel for the common infected.