I've been having a strange texture glitch, which follows lots of lag and freezing. I've been playing Morrowind for years, and none of this has ever happened until now. Some NPC bodies are untextured, while others are fine, and the game freezes. The text doesn't show up, although sometimes after I move my mouse over where ti should be, it shows up. Also, the escape menu doesn't display text but triangles in the corner where the text should be. I'll try to provide a screenshot, but since my computer usually freezes up, I don't know if I can.

Any mods installed?
Do you have problems in other games?
Screenshot would be nice if you can get one

No, no mods, and the other games are fine, if a bit slow. I can't figure out how to take screenshots, either.