^ oh no!!!

I'm using the nm + spec shader form the Wiki on my tree I just got done with. But for some reason, I'm having this weird problem with my alpha channel on the needles. When I move around, it's "selectively transparent", and seems to make parts transparent at random. Hideous! Lol!

I've used this same shader for other things before, without this problem. Take a look at this leaf sprite I made for dead leaves on the ground, using the same shader in the same manner:



See? Perfect... And I did it exactly the same for both mdls. I even get the same problem if I make an alpha map (bmp) and add it to skin settings. So I'm utterly confused and frustrated. Any ideas?