What texture Quality are you useing.
This is an odd problem. It could be your pc or more specifically you video card does not like it, but that doen't seem likely although I have seen some strange things happen in games when the hardware is not up to par. I am kinda reaching though
open the protraits.2da with KT an see if there is a row 54 well there should sinse a couple of the pics are shown., hmm. well open it anyway and see if the tags in row 54 are correct it should go T7_uthar, T7_uthar1, T7_uthar2, T7_uthar3, T7_uthar4.
check it out and get back to me.