I've had this issue for a very long time with the game but having regained interest in it, I find myself wanting to finally fix this strange issue.  I have the game and all 3 expansions but I play Arnor more than the others and I notice, seemingly with each race, that at least 1 hull of every hull type is a weird blotchy mess that's impossible to use.

I'd really like to be able to use these additional models with the game to add some more flavor and spice to it.  Here's a screen shot of it in case my vague description wasn't enough:

Any solutions would be welcome.

http://i6.photobucket.com/albums/y235/Darfix/GalCiv2.jpg