There's also some freaky glowing action going on at the back ends of the nacelles. Glad, kind of, that I'm not the only one with this problem; I thought my vid card might have been acting up.
Edit: Now this is odd. I just reloaded the Sov in the Mod Viewer and while the texture problem was still there, the green glow thing had moved to other places. Weird. Maybe it is me on that.